Growth of Onions in Bleach
|
|
- Griselda Davidson
- 5 years ago
- Views:
Transcription
1 Growth of Onions in Bleach Lab Report Marwa Abdulmalik IB No:
2 Design Aspect 1: Defining and Selecting Variables Aim: The aim of this experiment is to investigate the growth of onion roots in water with different amounts of bleach over time. Hypothesis: As the amount of bleach in the water increases, the growth of the roots decreases. This hypothesis is based on the fact that bleach is a pollutant, and is mostly used for sterilization purposes, which ultimately means it kills organic matter. Background Information: Onions, like all organisms, require basic needs to grow, and like plants, need sunlight and water. Onions, specifically though, have shallow roots, and therefore require a large amount of water to grow. Not only do they need this water, but this water must be untainted, so that the onions can get as much as they can from it. Bleach, which usually contains chlorine, is a common chemical used to whiten certain fabrics, through oxidization. Bleach is also used for sterilization, which controls bacteria and viruses, which are sometimes necessary for plants to obtain their nutrients. The choice of onions is due to the fact that it is an easy plant to grow, and bleach to test its power in stopping plant growth, and because it is easy to obtain. Variables: Independent: Amount of bleach Dependent: Length of onion root Controlled: Amount of water in each beaker, temperature of room, Time Aspect 2: Controlling Variables Equipment: beakers 15 onions water bleach ruler measuring tube labels Describe how you are going to measure the independent variable. The independent variable, bleach, will be measured using the measuring tube, in order to put the same amount of bleach required in each tube, under the unit of cm 3. Describe how you are going to measure the dependent variable.
3 The dependent variable, which is the length of the onion root, will be measured using a ruler and the unit of cm, to ensure the most accurate length. Describe what you did to make sure the controlled variables remained constant. The controlled variables remained constant through the cautious measurement of the amount of water in each beaker, to ensure that the onion s roots could reach the water and to make sure all the onions were growing with the same amount of water. Also, all the beakers were placed in the same room, therefore were all undergoing the same temperature and growing under it. The temperature was kept at constant room temperature with the automatic air conditioning system. Both these controlled variables made it possible for all the onions to be growing under the same conditions. Time will be controlled by a clock, and by recording the time intervals between the measurements of the roots. Aspect 3: Developing a Method of Collection Procedure: 1. Take 15 beakers, and label each three with the numbers 0,5,10,15, and Fill all beakers with water. 3. Add no bleach to the 3 beakers labeled For the rest of the beakers, add an amount of bleach corresponding to the label on the beaker (in cm 3 ) using the measuring tube. 5. Measure the length of the onion roots at 0 hours and record the results. 6. Repeat the measuring of the onion roots between different time intervals to record the growth of the roots. State the range of values that you are going to use for the independent variable. The bleach will be within a range of 0 cm 3 and 20 cm 3. State how many times you are going to repeat the measure of the independent variable. 3 times.
4 Data Collection and Processing Raw Data Table 1: Length of Roots at 72 hours ±0.5 Length of Roots (cm) Trial 1 Trial 2 Trial 3 0 Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Table 2: Length of Roots at 120 hours ±0.5 Length of Roots (cm) Trial 1 Trial 2 Trial 3
5 0 Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Table 3: Length of Roots at 214 hours ±0.5 Length of Roots (cm) Trial 1 Trial 2 Trial 3 0 Beaker Beaker Beaker Beaker Beaker Beaker Beaker
6 Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Table 4: Length of Roots at 238 hours ±0.5 Length of Roots (cm) Trial 1 Trial 2 Trial 3 0 Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker
7 Beaker Table 5: Length of Roots at 310 hours ±0.5 Length of Roots (cm) Trial 1 Trial 2 Trial 3 0 Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker Beaker
8 Mean (average) Example Calculation: Average in each beaker: ( ) / 3 = 7 (Ans 1) ( ) / 3 = 6.2 (Ans 2) ( ) / 3 = 3.5 (Ans 3) Total Average of root length with 0 cm 3 of bleach at 0 Hours (Ans 1 + Ans 2 + Ans 3) / 3 = 5.6 cm Mean Tables: Table 6: Average Root Length at 72 hours ±0.5 Mean Root Length (cm ) Table 7: Average Root Length at 120 hours (cm 3) Mean Root Length (cm )
9 Table 8: Average Root Length at 214 hours (cm 3) Mean Root Length (cm ) Table 9: Average Root Length at 238 hours (cm 3) Mean Root Length (cm ) Table 10: Average Root Length at 310 hours (cm 3) Mean Root Length (cm )
10 Percentage Change Example Calculation: At 0 hours [(Length with most bleach Length with no bleach) / (Length with no bleach)] [( ) / (5.6)]*100 =[- 0.89]*100 = % Percentage Change Tables: Table 11: Percentage Change at Different Time Intervals Time (hours) Percentage Change % Rate of Change: Example Calculation: At 0 bleach [(Length at 310 hours Length at 72 hours) / (310 72)] [( ) / (238)] [(2.9) / (238)] [0.012]
11 Table 12: Rate of Change at Different Bleach Levels Rate of Change (cm - 1 h - 1 ) Standard Deviation: Example Calculation: At 0 hours with 0 bleach STDV = ( )^2 / (3 1) = = = = = 2.16 Table 13: Standard Deviation at 0 hours Amount of Bleach Standard Deviation
12 Table 14: Standard Deviation at 72 hours Amount of Bleach Standard Deviation Table 15: Standard Deviation at 120 hours Amount of Bleach Standard Deviation Table 16: Standard Deviation at 214 hours Amount of Bleach Standard Deviation
13 Table 17: Standard Deviation at 238 hours Amount of Bleach Standard Deviation
14 Discussion During the execution of this lab, the presence of more than one variable made it difficult to identify which would be the independent and which would be the dependent. After identifying the independent as the amount of bleach and dependent as the length of the onion root, I based the length of the roots on the amount of bleach, and carried on the make the percentage change and the rate of change to be in relation to the amount of bleach rather than the time taken, seeing as the main idea is to see the affect that bleach has on the growth of onion roots, and time inevitably will pass. Therefore the x axis on all the graphs was shown to be the amount of bleach rather than the time, and this is to show the negative correlation that is present between the amount of bleach and the growth of the root. As shown in graphs 1-5, the average of the length of the root slowly declines as the amount of bleach increases. What is noticed in these 5 graphs is that the slope from no bleach to 5 centimeters cubed of bleach is very steep and steeper than the others, as all other slopes after this one are less steep. This is to show the danger that the bleach poses on the roots of the onion, and most other plants, as even a small amount was able to hinder the growth of this onion, and adding more bleach helped this process happen gradually. The graphs from 6-10 show the percentage change occurring. The percentage change is the change in the growth of the root in relation to the amount of bleach added. Once again there is negative correlation, and the percentage itself is negative. This is because the change was not a positive one, where the length of the root increased, rather it decreased as the bleach increased. All the graphs showed a great percentage change, ranging from This large percentage shows the extent to which the change is occurring. The presence of the bleach is not causing a minor change to the growth of the plant but rather a great one that is very close to 100%. The rate of change of the growth in accordance to the time is to investigate the role of bleach in plant growth. The rate of change is there to show to what extent each hour that the bleach is in the water does to a centimeter of onion root. Although it is a slow rate and the numbers are decimals, there is still an effect to some extent. When this rate is taken too far, it might damage the onion roots greatly. Although in this experiment the roots only stopped growing and were not damaged, if they were kept for a longer period of time the onion could have been at risk. This is why bleach is sometimes used in small amounts, but even these small amounts should not be kept for a long time because they ultimately damage the root. Conclusion In conclusion, this experiment showed that there is a negative correlation between the amount of bleach and the growth of the roots of an onion. This is because of the sterilizing power of the bleach that does not allow the onion roots to take in as many nutrients as they need to. It kills the bacteria that absorbs nutrients for the plants, and plants aren t able to be nourished. This sterilizing power of bleach, although harmful to plants, is the exact reason why humans in the real world use it. Bleach is used to get rid of the bacteria that are unwanted to humans, but are helpful to plants. It also has multiple uses such as whitening
15 and disinfecting, all through the process of oxidation. This process of oxidation is what damages these roots of onions and plants and keeps them from growing at a normal rate. Evaluation: Throughout this experiment there were many difficulties while executing it and writing up the lab report. There were many sources of error involved, which included adding the wrong amounts of bleach, or having different amounts of water in each beaker to start with. Also, the biggest source of error that has affected my lab report was the measuring of the onion roots. The onion roots were mostly very small, and hard to measure with the naked eye and a regular ruler. A lot of errors could have been as to the accurate length of the root. Also, in many onions there were a lot of small roots, and one long one, which made some of the calculations inaccurate, and caused outliers to appear. In addition to that, every time we measure the onion roots, we would forget which root we measured, which led us to choosing a random one and measuring it 3 times. This is what led to having the data increase and decrease with time instead of just increasing or just decreasing. This is the main issue which has led to the range being between 2 standard deviations instead of just 1. Although the sources of error were many, there are ways of improvement for all. First of all is to have the same person measure the water and bleach to ensure that they are keen on keeping the amounts equal. Also to have equipment that make measuring the water and the bleach easier and erase room for mistakes. As for the onion roots, a simple mark on one of the roots that were to be measured would have kept the measurements accurate and the person who was measuring on track. This lab report was difficult but it also presented itself as a new challenge to face and conquer.
Final Background Report. Viruses, illnesses, diseases - these are words that come to mind when most people
Final Background Report Viruses, illnesses, diseases - these are words that come to mind when most people think of bacteria. What those people do not know, though, is that not all bacteria are harmful.
More informationIn order to survive and grow,
ACTIVITY Summary: Participants explore plant needs with live plants. Grade Level: 1-8 Time: 3 or more 30-minute sessions over four weeks Learning Objectives: Participants will be able to: Identify the
More informationScience Fair Project. Environmental Global Warming Callie Fong Mrs. Mcnees Syracuse Junior High
Science Fair Project Environmental Global Warming Callie Fong Mrs. Mcnees Syracuse Junior High Problem How does carbon dioxide affect plant growth? (Investing global warming) Research More Carbon Dioxide
More informationEffect of Insulation on the Growth of Radish Plants- Cultivated Radish ( Raphanus sativus L.) Danielle Griggs, Meher Pandher, Avni Mehta, Meghan Royle
Effect of Insulation on the Growth of Radish Plants- Cultivated Radish ( Raphanus sativus L.) Danielle Griggs, Meher Pandher, Avni Mehta, Meghan Royle Section 1 June 10th, 2013 Mr. Fusco 1 Abstract: Research
More informationThermal Properties and Temperature
Thermal Properties and Temperature Question Paper 5 Level IGCSE Subject Physics Exam Board CIE Topic Thermal Physics Sub-Topic Thermal Properties and Temperature Paper Type Alternative to Practical Booklet
More informationCan We Have Too Much of a Good Thing? Lab
Can We Have Too Much of a Good Thing? Lab Introduction Plants require 17 essential chemical elements for successful growth and reproduction. Carbon, oxygen, hydrogen, nitrogen, phosphorus, and potassium
More informationWhat is Soil? 25% 25% Age: 8-10 years old (grades 3-4), but can be adapted for all youth 5-19 (grades K-12)
5% What is Soil? 25% 45% Air Water Minerals Organic Matter 25% Age: 8-10 years old (grades 3-4), but can be adapted for all youth 5-19 (grades K-12) Objectives: 1. Members/students will be able to list
More informationEvaporation in the Desert
Evaporation in the Desert Question: How do different desert biome conditions affect water evaporation? My Hypothesis: Materials: 5 clear plastic storage containers Permanent markers Rulers Automatic timer
More informationLab 12E, 12F, 2E: Acid Rain and Seeds
12E Describe the flow of matter through the carbon and nitrogen cycles and explain the consequences of disrupting these cycles. 12F Describe how environmental change can impact ecosystem stability. 2E
More informationSoil Ecology Project. Alex Pace, Meredith Callis, Cate Wilson, Sarah Welch
Soil Ecology Project Alex Pace, Meredith Callis, Cate Wilson, Sarah Welch Background As a final project in ninth grade biology we were asked to do a soil ecology project. This project was to be created
More informationProblem. Can paper mill sludge be used as a fertilizer for plants and does it change the ph of the
Problem Can paper mill sludge be used as a fertilizer for plants and does it change the ph of the substrate it was used in? This problem was selected to learn if the chemical make-up of paper mill sludge
More informationAPES- Environmental Effects of Radiation Laboratory Activity. Purpose: To see the effect of the seed irradiation on germination and plant growth
APES- Environmental Effects of Radiation Laboratory Activity Purpose: To see the effect of the seed irradiation on germination and plant growth Background: The irradiation of seeds may cause a sudden and
More information2012 FINAL SOILS AREA 2 Envirothon Questions Answer KEY
2012 FINAL SOILS AREA 2 Envirothon Questions Answer KEY Questions 1-6 to be answered at the soil pit: 1. Soil scientists categorize soils by drainage classes. What is the drainage class of the soil at
More informationACTIVITY 2 How Does Your Garden Grow?
ACTIVITY 2 How Does Your Garden Grow? Study Question: Activity: Curriculum Fit: What is the optimum level of plant nutrient application? In this lesson students will conduct an experiment that will examine
More informationb How might white flamingos have confused those who first saw them?
9Aa-1 Environmental variation Name Class Date 1 What resources do plants need from their habitats? Tick ( ) four boxes. water salt light rocks wind slugs mineral salts warmth 2 Draw lines to match the
More informationForce and Bungee Cord Length: Will Longer Length Un-Stretched of Cord result in a Greater or Lesser Force than a Shorter Length of Un-Stretched Cord
Force and Bungee Cord Length: Will Longer Length Un-Stretched of Cord result in a Greater or Lesser Force than a Shorter Length of Un-Stretched Cord Introduction: Answering the request of quite the adventurous
More informationBackground Report. "We know less about life in the earth under our feet than we do about the far side
Background Report "We know less about life in the earth under our feet than we do about the far side of the moon" (Discovery School, 2002). Knowledge about soil and the organisms living in it has been
More informationTransfer and Isolation Materials required (per group):
Aseptic Technique and Culture Transfer - 1 Aspetic transfer The purpose of this laboratory exercise is to develop facility in transferring bacterial cultures from one kind of medium to another using various
More informationLAB 8. FIGURE L8.1 A rock sculpted by wind erosion in the Altiplano region of Bolivia. FIGURE L8.2 A dust storm in Casa Grande, Arizona
Lab Handout Lab 8. Surface Erosion by Wind: Why Do Changes in Wind Speed, Wind Duration, and Soil Moisture Affect the Amount of Soil That Will Be Lost Due to Wind Erosion? Introduction Earth scientists
More informationDo different liquids effect the rate of germination. By: Bridger Zoske
Do different liquids effect the rate of germination. By: Bridger Zoske Question: Will different liquids effect germination time of Mung Bean and Wheat seeds. (Different groups are Smart water, Salt, Tap
More informationCompaction and its Effects on Percent. Moisture Content and Bacteria Density
Compaction and its Effects on Percent Moisture Content and Bacteria Density By Morgan Alexander, Shannon Quinn, and Maddy Wilson I have completed this assignment honorably. Bio Final Lab Background In
More informationOverview: Objectives: Targeted Alaska Grade Level Expectations: Vocabulary: Whole Picture:
CONVECTION CONNECTION (MODIFIED FOR ADEED) Overview: In this lesson, students observe convection current by performing two lab experiments. As a result of these activities, students develop an understanding
More informationHUMIDITY IN INCUBATION
HUMIDITY IN INCUBATION Humidity is one of four primary variables which must be controlled during egg incubation - the others being temperature, ventilation and movement (or turning). Humidity is the most
More informationGerm Presentation why they are SO BAD!!!! By, Zach W, Zach O, Jason H, Samuel W. PHEOCS Investigation
Germ Presentation why they are SO BAD!!!! By, Zach W, Zach O, Jason H, Samuel W. PHEOCS Investigation We are doing this to investigate germs. the different kinds, where they can be found, where more germs
More informationPlant-A-Plant Water Laboratory Guide
Plant-A-Plant Water Laboratory Guide Task Prepare conditions for growing maize seedlings with different amounts of water. Plant seedlings into plastic bottles, set up a constant water resource and observe
More informationRoom to Grow. Purpose. Background Information. Time. Materials. Procedure
Room to Grow Purpose Students will plant 5-6 different seeds of different sizes to investigate if seed size directly corresponds to the size of the plant the seed produces over time. Students will learn
More informationFire Effects on Soil. Factsheet 2 of 6 in the Fire Effects on Rangeland Factsheet Series PHYSICAL AND CHEMICAL PROPERTIES
1 of 5 9/11/2009 1:58 PM Factsheet 2 of 6 in the Fire Effects on Rangeland Factsheet Series Fire Effects on Soil This factsheet will focus on how fire affects soils. All fires, regardless of whether they
More informationQ1. The diagram shows an experiment to find out what happens to infrared waves when they strike different surfaces.
Q1. The diagram shows an experiment to find out what happens to infrared waves when they strike different surfaces. (a) The water in the black tube gets hotter than the water in the shiny tube. Choose
More informationPlaying in the Dirt: Discovering Soil
Playing in the Dirt: Discovering Soil Objective Students will conduct experiments with different kinds of soil and chart results. Materials soil samples from three different areas, as follows: A. topsoil
More informationThe Effect of Large Orifice Sprinklers on High-Challenge Fires
SUPPLEMENT 2 The Effect of Large Orifice Sprinklers on High-Challenge Fires Bill Thomas, P.E. Bill Tomes Editor s Note: Supplement 2 provides background information related to the development and application
More informationUnit 1. Greenhouse Orientation - An introduction to propagation facilities, containers, substrates and fertilizers.
Unit 1. Greenhouse Orientation - An introduction to propagation facilities, containers, substrates and fertilizers. During this first laboratory period, you will be introduced to the University of Florida
More informationChanges of State. Lesson 1
Lesson 1 Changes of State If all the ice in the world melted, the oceans would rise by more than 65 meters (215 feet)! This iceberg is melting in Paraiso Bay, Antarctica. What happens to ice when it melts?
More informationSOIL EROSION. Science Investigation: Why the rain water falling from the. Part A. slope is dirty? By Seema Vora and Sophie Adam (grade 4)
Part A SOIL EROSION Science Investigation: Why the rain water falling from the slope is dirty? By Seema Vora and Sophie Adam (grade 4) Abstract: Sophie Adam, 9 years old and Pre-service teacher Seema Vora
More informationThe Optical Time Domain Reflectometry and the Fusion Splicer Laboratory exercise
The Optical Time Domain Reflectometry and the Fusion Splicer Laboratory exercise 1 The purpose of the exercise...2 2 Background...2 2.1 Introduction to scattering and attenuation...2 2.2 Introduction to
More informationAP Air Ion Counter Instructions
AP Air Ion Counter Instructions Standard 2 million ions/cm 3 version- The 6 m long ground cord should be used to connect the meter to earth ground for most types of measurements - - especially if you are
More informationTransition Zones in the Cathance River Preserve. Chloe Emerson and Katrina Cornish
Transition Zones in the Cathance River Preserve Chloe Emerson and Katrina Cornish Purpose Determine whether plants and soil moisture content differ as distance from a vernal pool changes. Hypothesis Plant
More informationActivity: Soil and Erosion. Objective: To examine the effects of rainfall-induced erosion on bare soil versus vegetated soil.
Activity: Soil and Erosion Objective: To examine the effects of rainfall-induced erosion on bare soil versus vegetated soil. Grade level: 6 th Format: Lab experiment Materials: Per student or student group
More informationTomatosphere: Space Gardening (Adapted by: Nandita Bajaj from Tomatosphere.org)
Tomatosphere: Space Gardening (Adapted by: Nandita Bajaj from Tomatosphere.org) Background Mars, our neighbouring planet has been the object of our fascination for as long as space exploration began over
More informationVariables in Science. Name : Class : Date : 1. Which variable do we change on purpose? b) Dependent. a) c) Independent Control
NOS Quiz 2 Revision 2 Variables in Science Name : Class : Date : 1. Which variable do we change on purpose? Control 2. Which variable responds to the change and gets measured? Control 3. Which variable
More informationTeacher Resource. Grow Does temperature and light level affect growth rate? Grow
Teacher Resource Grow Does temperature and light level affect growth rate? Grow Terrific Scientific Campaign Investigation 9 Grow At BBC Terrific Scientific we re passionate about helping to develop science
More informationNFT. basic steps to successful growing. nutriculture ltd. Do you want. Find out more. Hydroponic
NFT Do you want Earlier Bigger Taste Hydroponic Crops Yields Explosion Excellence Find out more basic steps to successful growing BASIC STEPS TO GROWING SUCCESSFULLY USING NFT NFT (NUTRIENT FILM TECHNIQUE)
More informationAn Inquiry into Seed Germination
Overview This NGSS-aligned activity is a student inquiry into the factors that affect seed germination. The activity can be used as an introductory activity for plant studies in biology or as an environmental
More informationInfra-Red Radiation. Question Paper. Save My Exams! The Home of Revision. Exam Board. Page 1. Score: /68. Percentage: /100
Infra-Red Radiation Question Paper Level Subject Exam Board Unit Topic Difficulty Level Booklet GCSE Physics AQA P1 Infra-Red Radiation Silver Level Question Paper Time Allowed: 68 minutes Score: /68 Percentage:
More informationTRACKS Lesson Plan. Lesson 4: Physical Activity and Planting a Garden Grades 9 12
TRACKS Lesson Plan Lesson 4: Physical Activity and Planting a Garden Grades 9 12 I. Nutrition Education Objective: Goal 1: Students will comprehend concepts consistent with USDA guidance related to eating
More informationKaite. Cultivation guidelines. Variety characteristics. the power of our peppers the power of Enza Zaden
Cultivation guidelines Kaite Variety characteristics Yellow Fast colouring Blocky Average fruit weight approx. 190 g Stable fruit weight throughout the season Very good firmness Tm:0-3 resistant Not susceptible
More informationConditioning Water: Hydroponics. Nathania Nischal
Conditioning Water: Hydroponics Nathania Nischal Introduction Hydroponics is a growing industry that involves growing plants not in soil, but in water. In a hydroponic system, many plants are put in pots
More informationPowerful Classroom Assessment: Super Grow Sample Student Responses for Writing a Conclusion SR1
Sample Student Responses for Writing a Conclusion SR1 Super Grow decreases the time the pea plant will mature by quite a bit. In container #1 the pea took 70 days to mature, but in container #2 it only
More informationSoil characteristics that influence nitrogen and water management
Section C Soil characteristics that influence nitrogen and water management Soil characteristics vary across the landscape Soils vary from one field to another, and often within the same field. Soil differences
More informationTHE RELIABILITY OF RADON REDUCTION TECHNIQUES. CB Howarth
Radon in the Living Environment, 052 THE RELIABILITY OF RADON REDUCTION TECHNIQUES CB Howarth National Radiological Protection Board Chilton, Didcot, Oxon, OX11 0RQ, UK Tel: +44 1235 822796, Fax: +44 1235
More informationUNIQUE COLLEGE OF COMPUTER SCIENCES General Certificate of Education Ordinary Level
UNIQUE OLLEGE OF OMPUTER SIENES General ertificate of Education Ordinary Level PHYSIS Paper 1 Multiple hoice lass II2 III2 995054/11 January 2011 91 hour dditional Materials: Multiple hoice nswer Sheet
More informationWhat impact do car emissions have on the bacteria density in soil?
Folgueras, Pine, and Miller1 What impact do car emissions have on the bacteria density in soil? Soil Ecology Project By: Elena Folgueras, Lauren Pine, and Leigh Miller Folgueras, Pine, and Miller2 Elena
More informationUnderstanding Growing Media Components
Lesson A4 2 Understanding Growing Media Components Unit A. Horticultural Science Problem Area 4. Growing Media, Nutrients, and Fertilizers Lesson 2. Understanding Growing Media Components New Mexico Content
More informationThe Basics: Summary. Objectives. for the experiment: teacher prep, for each table of 3-4. California Content Standards Addressed. for journal prompt:
Grade Level: 6-8 The Basics: WHAT S IN WETLAND SOIL? Summary Does soil from different places have different proportions of organic and inorganic materials? In this lesson, students will perform tests and
More informationUnit 5: Soil - Stages of Soil formation
Biology Form 3 Page 68 Ms. R. Buttigieg Unit 5: Soil - Stages of Soil formation Soil is the layer of material covering parts of the land, the home of many organisms and the area from which land plants
More informationSCIENCE TOTAL KEY STAGE LEVELS TEST A TEST A. First Name. Last Name. School. Downloaded from Compare4Kids.co.
SCIENCE KEY STAGE 2 2005 TEST A LEVELS 3 5 PAGE 5 7 9 11 13 15 17 19 20 TOTAL MARKS TEST A First Name Last Name School INSTRUCTIONS Read this carefully. You have 45 minutes for this test. Answers This
More informationActivity Watering and Plant Growth
Activity Watering and Plant Growth Students will design and carry out an experiment to determine how altering watering conditions (temperature, amount, size of droplet, time of day, mulching, type of soil,
More information3 From Bedrock to Soil
CHAPTER 10 3 From Bedrock to Soil SECTION Weathering and Soil Formation BEFORE YOU READ After you read this section, you should be able to answer these questions: What is soil? How do the features of soil
More informationSafety Lab Goggles are required! Apron is optional!
Goggles are required! Apron is optional! Station 1: What would acid do to your eye? Materials: 6M hydrochloric acid, dropper, two petri dishes, egg whites. Procedure: 1. Separate the egg white from the
More informationExperimental Procedure
1 of 7 9/13/2018, 10:38 AM https://www.sciencebuddies.org/science-fair-projects/project-ideas/enveng_p036/environmental-engineering/can-nanotechnology-help-clean-up-ocean-oilspills (http://www.sciencebuddies.org/science-fair-projects/project-ideas/enveng_p036/environmental-engineering/can-nanotechnology-help-clean-up-ocean-oil-spills)
More informationScience - Year 3. Rocks Block 3R. Rocks and Fossils. Session 5 Resource Pack
Science - Year 3 Rocks Block 3R Rocks and Fossils Session 5 Resource Pack Original resource copyright Hamilton Trust, who give permission for it to be adapted as wished by individual users. We refer you
More informationRecommended Resources: The following resources may be useful in teaching this
Unit D: Fruit and Vegetable Crop Production Lesson 1: Planning and Preparing a Vegetable Garden Site Student Learning Objectives: Instruction in this lesson should result in students achieving the following
More informationPlant-A-Plant Carbon Dioxide Laboratory guide
Plant-A-Plant Carbon Dioxide Laboratory guide Task Transplant maize seedlings into a closed system (plastic bottle) in order to monitor the effect of decreased carbon dioxide (CO 2 ) concentration on plant
More informationVideo Worksheets Title Page
Video Worksheets Title Page Name: Date: Use the information from the videos to neatly complete each worksheet using only pencils (no ink pens). Color the pictures with crayons or colored pencils (no markers)
More informationEXECUTIVE SUMMARY Greater Milwaukee Watersheds Stormwater Report. Background and Significance
EXECUTIVE SUMMARY 2008-2012 Greater Milwaukee Watersheds Stormwater Report Background and Significance The overall goal of this project was comprehensive sampling and data analysis to determine the contribution
More informationThis is to certify that the optical output of the: SENSORNET LR-DTS Temperature Sensing System: (Variants Mark 1, Mark 2a and Mark 2b)
Optical Services Ltd. This is to certify that the optical output of the: SENSORNET LR-DTS Temperature Sensing System: (Variants Mark 1, Mark 2a and Mark 2b) Meets the requirements stated in IEC 60825-1:2001
More informationSummary of Conversion Steps. 1. Obtain the abandonment/conversion permit from the Department of Health.
One of the benefits of connecting to the Central Wastewater System is the opportunity it provides to convert your septic tank into a cistern. For slightly more than the cost of septic tank abandonment
More informationXERISCAPE The conservation of water and energy through creative landscape.
The conservation of water and energy through creative landscape. Almost every summer North Texas has been plagued with drought like conditions. This and a growing population has increased the demand of
More informationSoil is a Natural Resource. February 12, 2015
February 12, 2015 February 12, 2015 Soil types differ in how they hold water. Soil that is mostly humus absorbs water like a sponge with only a little runoff, and this water is then available to the plants.
More informationUnderstanding total measurement uncertainty in power meters and detectors
Understanding total measurement uncertainty in power meters and detectors Jay Jeong, MKS Instruments. Inc. INTRODUCTION It is important that users of calibrated power meters and detectors understand and
More informationTechnical description. Atec.
www.thermia.com Thermia Värmepumpar is not liable or bound by warranty if these instructions are not adhered to during installation or service. The English language is used for the original instructions.
More informationIGCSE PHYSICS GRADE 11 TERM 1 ASSESSMENT BOOKLET
PHYSICS IGCSE PHYSICS GRADE 11 TERM 1 ASSESSMENT BOOKLET 2013-2014 STS Page 1 of 44 PHYSICS PHYSI1101 ASSESSMENT TASK COVER PAGE Topic STS Performance Criteria Assessment event Date Time Thermal Physics
More informationKaren A. Duhring Marine Advisory Scientist Center for Coastal Resources Management Virginia Institute of Marine Science College of William & Mary
Karen A. Duhring Marine Advisory Scientist Center for Coastal Resources Management Virginia Institute of Marine Science College of William & Mary March 20, 2009 Low-Impact Shoreline Stabilization Cumulative
More informationAuthor(s) Redacted Author(s) Redacted Abstract: Introduction
Author(s) Redacted 1 Author(s) Redacted 3 May 2011 Contrasting Growth Rates and Overall Plant Health in Brassica Rapa Utilizing Standard Fertilizer Pellets and Earthworm Castings Abstract: Brassica rapa
More informationAMMONIA DETECTION BY LASER THE NEXT GENERATION OF AMMONIA DETECTION
AMMONIA DETECTION BY LASER THE NEXT GENERATION OF AMMONIA DETECTION Ammonia was amongst the world s first chemical refrigerants. Due to it s low cost, efficient cooling qualities and environmentally friendly
More informationSafe method: Chilled storage and displaying chilled food Harmful bacteria can grow in food that is not chilled properly.
Safe method: Chilled storage and displaying chilled food Harmful bacteria can grow in food that is not chilled properly. Safety point Why? How do you do this? Certain foods need to be kept chilled to keep
More informationVocabulary : compost, fertilizer, mass, seed, soil, variable. Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
Student Exploration: Growing Plants Directions: Go to our class website. Under Unit 3 materials, click on the link for Growing Plants Virtual Lab. Use the following information to log-in: Username npascience
More informationDIRT! APES Laboratory Activity
Name: Part I: Soil Texture DIRT! APES Laboratory Activity Can one determine the texture of soil by examining the particles found in a particular sample? The purpose of this activity is to determine the
More informationDry Water in the Greenhouse
Dry Water in the Greenhouse One might say, water is supposed to be wet. Well, not always! That is only one form, or physical state, we are familiar with. We will not be dealing with the liquid today. We
More informationTHE A.A.B. COMPANY 615 McCallie Avenue Chattanooga, TN
To: From: Re: Upper Management A.A.B. Project Engineers THE A.A.B. COMPANY 615 McCallie Avenue Chattanooga, TN 37403 931-581-8816 Dryer Oven Maintenance & Energy Studies Date: November 26 th, 2013 The
More informationHomeowners Guide to Stormwater BMP Maintenance
Homeowners Guide to Stormwater BMP Maintenance What You Need to Know to Take Care of Your Property Rain Barrel Dry Well Rain Garden Pervious Asphalt Porous Pavers City of El Monte Stormwater BMP Management
More information3. PLAN AND IMPLEMENT A CROP MONITORING PROGRAM
3. PLAN AND IMPLEMENT A CROP MONITORING PROGRAM Monitoring needs to be based on a realistic, but effective system suited to your farm needs. Firstly you must be clear about: What pests (and diseases) you
More informationEVAPORATION NEEDS ENERGY
Basic: EVAPORATION NEEDS ENERGY Drying cloth involves two processes. Energy has to be provided to change the water from liquid to vapour and an air stream is needed to remove the vapour. We discuss the
More informationThe Biochemistry of Compost Bins
CHALLENGE LAB DESIGN YOUR OWN The Biochemistry of Compost Bins BACKGROUND All material that was once alive will decay. Decomposition is a natural and healthy process that returns the building blocks of
More information5.1 Introduction to Soil Systems IB ESS Mrs. Page
5.1 Introduction to Soil Systems IB ESS Mrs. Page 2015-2016 I Am Soil Thinking Routine: See, Think, Wonder Look at the following images. For each image write down what you see Then write down what you
More informationBEACON HILL INTERNATIONAL SCHOOL
CONTENTS Stormwater in the Schoolyard Lesson 3 BEACON HILL INTERNATIONAL SCHOOL Teacher Guide Local Stormwater Systems Lesson 5 Stormwater in Our Community Lesson 6 How to Use This Guide This guide supports
More informationBlow Dryer and Paper Towel Microbiological Comparison. Presented by Sean Bailey
Blow Dryer and Paper Towel Microbiological Comparison Presented by Sean Bailey This Experiment to determine which is a more sanitary method of drying one's hands paper towels, or hot air hand dryers Two
More informationApplication Note. Application Note for BAYEX
Application Note Application Note for BAYEX Preface This application note provides the user a more detailed description of the Bayesian statistical methodology available in Version 8.05 and above, of the
More informationSo far, we have covered the basic concepts of heat transfer and properties.
ET3034TUx - 6.2.2 - Solar thermal energy 2 - Solar thermal heating So far, we have covered the basic concepts of heat transfer and properties. Now we are going to discuss the applications of these concepts
More informationList of Equipment, Tools, Supplies, and Facilities:
Unit A: Principles of Soil Lesson 4: Formation of Soil Student Learning Objectives: Instruction in this lesson should result in the students achieving the following objectives: 1. Identify 5 factors involved
More informationVocabulary SAV, survival, nutrients, interdependency, quality, prosecutor, defender, jury
Who Killed SAV? Strand Earth Resources Topic Interdependency of animals and plants, Effects of human actions on the environment Primary SOL 3.10 The student will investigate and understand that natural
More informationStarting Your Garden Indoors. Coppell Environmental Education December 8, 2012
Starting Your Garden Indoors Coppell Environmental Education December 8, 2012 Why Start Seeds Indoors? Plant hard-to-find varieties Save money Beat the winter blues Rewarding to grow a plant from seed
More informationSOIL STRUCTURE-ORGANIC MATTER-SOIL MICRO ORGANISMS
5 SOIL STRUCTURE-ORGANIC MATTER-SOIL MICRO ORGANISMS Background Objective The texture and structure of the soil influence the dimensions of the open spaces in the soil. The texture refers to the proportions
More informationMy name is Zack Holden, co-instructor for this course. Many people associate severe fire with catastrophic, stand-destroying forest fires.
My name is Zack Holden, co-instructor for this course. Many people associate severe fire with catastrophic, stand-destroying forest fires. But fire can have profound effects on soils and the below ground
More informationLesson 1: Identifying Texture in Soil
Lesson 1: Identifying Texture in Soil 1 Clods Loam Peds Permeability Soil structure Soil texture Soil workability Textural triangle Water-holding capacity 2 I. A. Soil texture is the fineness or coarseness
More informationFagronLab NP-1 UV. Negative pressure workbench. User Manual
Negative pressure workbench User Manual Table of contents 1. Introduction... 3 2. Service... 3 3. Warranty... 3 4. Application range... 4 5. Main technical parameters... 4 6. Performance index... 5 Vibration
More informationCATHARINE BLAINE. Teacher Guide. CONTENTS Stormwater in the Schoolyard Lesson 3
CONTENTS Stormwater in the Schoolyard Lesson 3 Local Stormwater Systems Lesson 5 CATHARINE BLAINE Stormwater in Our Community Lesson 6 How to Use This Guide This guide supports the Community Waters Science
More informationThe simple solution to a daily challenge
Danfoss Dynamic Valve The simple solution to a daily challenge Optimal temperature control and automatic hydronic balancing for two-pipe heating systems all in a single valve. 2-in-1 valve design The Dynamic
More informationDesign and Construction of a Simple Standing Wave Thermoacoustic Refrigerator
Design and Construction of a Simple Standing Wave Thermoacoustic Refrigerator Mark Peterson Yap 1 and Efren Dela Cruz 2 Mechannical Enginering Department, De La Salle University 2 efren.delacruz@dlsu.edu.ph
More informationA novel test method for predicting crushing elasticity in medium fluting with higher relevance than for instance currently used methods like CMT
White paper Thomas Fürst (ABB) Lorentzen & Wettre products, Sweden Peter Gerards (Smurfit Kappa) Product Development, Netherlands A novel test method for predicting crushing elasticity in medium fluting
More informationTurf-Tec Digital Moisture Sensor
Turf-Tec Digital Moisture Sensor From the inventors of one of the first moisture sensors available to the turfgrass industry comes the new Turf-Tec Digital Moisture Sensor. The Turf-Tec Digital Moisture
More information