Hydroponics Lab book 3/17/17 Check that you have the following in your lab book. You will need these items for the lab book test. A Day test: March 23 B Day test: March 22 0. Inside Front cover: paste a greenhouse chart in Page 1: About the Author=page 1 Page 2: Exemplars Science Rubric: performance grading Page 3: biology Lab Notebook Grading Rubric Page 4: Table of Contents (list every lab, page # and date) Page 5: Black box systems inquiry. (List as many systems as you can, Inputs/Outputs/ a picture of what you think is inside the black box) Page 6: The Greenhouse NFT Systems investigation i)a picture of the NFT system with labels: nursery channels, finishing channels, hoses, valve, pvc pipe, pump, reservoir, water with nutrient salts, pvc pipe, return line ii) What are the inputs, outputs, boundaries, interactions with other systems? Page 7: Greenhouse Seeding, Engineering design handout filled in Page 8: Greenhouse Harvesting Page 9: Greenhouse variables: ph, temperature and electroconductivity. Page 10: IPM investigation lab, pest identification chart, IPM program handout FIELD NOTES: The middle section of your lab book 1. You should have at least your first impression of the greenhouse glued in (AEIOU + at least 3 sentences written about your first visit) and 2 more reflections. One of these reflections should be the plan for your seeding device (Engineering Design Process) A=Adjective E=Emotion I=Interesting O=Oh! (Surprising or shocking) U=Um? (question)
Page 1: About the Author=page 1. Write a page about you. Include your strengths, weaknesses and one challenge. (/100 points) Page 2: Exemplars Science Rubric: performance grading (handout) Page 3: biology Lab Notebook Grading Rubric (handout) Page 4: Table of Contents (list every lab, page # and date) Page 5: Black box systems inquiry. (List as many systems as you can, Inputs/Outputs/ a picture of what you think is inside the black box) A system is a group of related parts that work together. Examples: the school system, a stapler, a basketball team. Page 6: The Greenhouse NFT Systems investigation i)a picture of the NFT system with labels: nursery channels, finishing channels, hoses, valve, pvc pipe, pump, reservoir, water with nutrient salts, pvc pipe, return line ii) What are the inputs, outputs, boundaries, interactions with other systems? Inputs What goes into the system Carbon dioxide Water Nutrients Seeds oasis Outputs What is the product? Plants (food to eat) oxygen Interactions with other systems (What other systems if the NFT system related to?) Oxygen cycle Carbon cycle Energy system Water cycle Food system
Page 7: Greenhouse Seeding, Engineering design handout filled in Seeding in a Hydroponic Greenhouse.date Question: How do we propagate in a hydropoinc greenhouse? Hypothesis: I think we will start plants by Procedure: 1. Prepare: use hair net if needed. Wash hands. Use hand sanitizer. 2. Get supplies: get a plastic tray and a 9x9 cube piece of oasis. Put the oasis ont he tray. Get seeds from the refrigerator. 3. Seed: Put 8-10 seeds in each well (hole). Tap the oasis to loosen the extra seeds. Put the extra seeds back in the bag. Refrigerate all seeds. 4. Propagation table: (Prop table): Place a stake in each crop with the date and name of the seeds on it. Use a permanent marker. Water the oasis with a sprinkling can. Put hoses in the oasis on the Prop. table. Question: 1. How many seeds did you plant? How many per well? What type of crop did you plant? 2. Why would a grower want to heat the propagation table in the winter? Reading: Usually we will plant 8-10 seeds per well (hole) to seed a hydroponic greenhouse. Crops we grow are lettuces, swiss chard, kale/collard mix, peppers and tomatoes. Page 8: Greenhouse Harvesting
Page 9: Greenhouse variables: ph, temperature and electroconductivity. Everyday when we enter the greenhouse we check the temperature, electroconductivity and ph. The electroconductivity measures how high the nutrient content is in the water. It lets us check if the plants are getting enough nutrients. We aim for an elecroconductivy of 2.8-3.0 ms/cm. EC is measured in units called Seimens per unit area (e.g. ms/cm, or miliseimens per centimeter), and the higher the dissolved
material in a water or soil sample, the higher the EC will be in that material. The ph is a measure of acid or base in the reservoir water. We aim for a ph of 6.0 Plants can only grow in certain ph conditions. Different plants prefer different ph values. http://serc.carleton.edu/microbelife/research_methods/environ_sampling/ph_ec.html Page 10: IPM investigation lab, pest identification chart, IPM program handout