1 Why Do Changes in State Take Place? / What Is Boiling? / What Is Evaporation?

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tates of Matter: oiling, vaporation and ondensation ame: onsolidation orksheet 1 hy Do hanges in tate ake lace? / hat s oiling? / hat s vaporation? 1. nswer the questions below. a. hat are the three states that water can exist in?

1 tates of Matter: oiling, vaporation and ondensation ame: onsolidation orksheet 1 hy Do hanges in tate ake lace? / hat s oiling? / hat s vaporation? 1. nswer the questions below. a. hat are the three states that water can exist in? b. Give an example for each state that you have mentioned in a. c. Matter can undergo a change in state through several processes. ame these processes. d. Give example from of the processes you have mentioned in c lston ublishing ouse te td cience M eacher s Guide Grade 5 205

206 umidity emperature eat team oiling ind vaporation Z V Z M F M D D J

2 2. elow are several words that are related to changes in state. Find and circle these words in the letter grid below. 206 umidity emperature eat team oiling ind vaporation Z V Z M F M D D J K G Q M G Z Q G J K M K J V Z F K D dditional eacher s esources 2012 lston ublishing ouse te td

3 tates of Matter: oiling, vaporation and ondensation ame: onsolidation orksheet 2 hat Factors ffect the ate of vaporation? ook at the picture below and answer the following questions. ita has decided to dry her wet towel by hanging it on a clothesline in her garden. nstead of leaving her towel fully open, she folded it into half as shown below. a. ill ita s towel take a longer or shorter time to dry? b. Give your reason for your answer in a lston ublishing ouse te td cience M eacher s Guide Grade 5 207

4 tates of Matter: oiling, vaporation and ondensation ame: onsolidation orksheet 3 hat s ondensation? nswer the following questions. a. hat is condensation? b. om prepared himself a cold drink as shown below. Draw and label on the picture what you would see after the drink is left out in the open for five minutes. c. xplain the reason for your answer in b. 208 dditional eacher s esources 2012 lston ublishing ouse te td

5 tates of Matter: oiling, vaporation and ondensation ame: onsolidation orksheet 4 hat s the ater ycle? elow is a diagram that shows the water cycle. tudy the diagram and answer the questions that follow. a. hat is the water cycle? b. Draw arrows on the diagram above to show the correct direction of the cycle. c. xplain the water cycle process. 1: 2012 lston ublishing ouse te td cience M eacher s Guide Grade 5 209

6 2: 3: 4: d. hy is the water cycle important? 210 dditional eacher s esources 2012 lston ublishing ouse te td

tates of Matter: oiling, vaporation and ondensation ame: onsolidation orksheet 5 hy Do e eed to onserve ater? he examples below show water being wasted.

7 tates of Matter: oiling, vaporation and ondensation ame: onsolidation orksheet 5 hy Do e eed to onserve ater? he examples below show water being wasted. hat can be done to save water in each of these examples? rite your answers below each picture. ri can save water by ita can save water by 2012 lston ublishing ouse te td cience M eacher s Guide Grade 5 211

8 Min can save water by 212 dditional eacher s esources 2012 lston ublishing ouse te td

9 tates of Matter: oiling, vaporation and ondensation ame: Fun and Games rossword uzzle! omplete the crossword puzzle using the clues given below cross: 3. he process where water changes from the liquid state to the gaseous state is known as. 5. he falling of water droplets from the sky is also known as. 6. iving things give off vapour through a process called respiration. that gather high up in the atmosphere. 7. iny water droplets make up Down: 1. is a process where water vapour changes into water droplets. 2. is lost when water vapour changes into water droplets. are living things that give off water vapour through their stomata e see on grass blades early in the morning lston ublishing ouse te td cience M eacher s Guide Grade 5 213

10 tates of Matter: oiling, vaporation and ondensation ame: xam ractice rocess skills: bserving, nalysing, nferring he picture below shows two cans. ne of them was taken out from the refrigerator, while the other was taken out from a shelf in the kitchen. tudy the picture carefully and answer the questions that follow. an an a. hich of the cans was taken out from the refrigerator? [1 mark] b. xplain how you arrived at your answer in a. [2 marks] int: bserve the two cans carefully. hat is the difference between the two? hat do you think caused this difference? 214 dditional eacher s esources 2012 lston ublishing ouse te td

2012 lston ublishing ouse te td cience M eacher s Guide Grade 5 215 1 1.

that is fogged up after a hot bath/shower. (upils should choose one example. ccept all possible answers.) d. Give example from of the processes you have mentioned in c.

11 2012 lston ublishing ouse te td cience M eacher s Guide Grade nswers to dditional eacher s esources Freezing: ater to ice; Melting: olid gold to melted or molten gold; oiling: ater boiling to steam; vaporation: uddle of water evaporating; ondensation: mirror that is fogged up after a hot bath/shower. (upils should choose one example. ccept all possible answers.) d. Give example from of the processes you have mentioned in c. Freezing, melting, boiling, evaporation and condensation c. Matter can undergo a change in state through several processes. ame these processes. all possible answers.) olid state: ce; iquid state: ater; Gaseous state: ater vapour (ccept b. Give an example for each state that you have mentioned in a. Z V J G D V F G tates of Matter: oiling, vaporation and ondensation G Q F a. hat are the three states that water can exist in? olid state, liquid state and gaseous state K Q M ind oiling emperature umidity K Z K M Z J J M D M K team nswers to dditional eacher s esources D Z vaporation eat 2. elow are several words that are related to changes in state. Find and circle these words in the letter grid below. nswer the questions below. hy Do hanges in tate ake lace? / hat s oiling? / hat s vaporation? onsolidation orksheet ame: tates of Matter: oiling, vaporation and ondensation

12 dditional eacher s esources it harder for the water from the towel to gain more heat and evaporate. he towel is folded in half, decreasing its exposed surface area, thus making b. Give your reason for your answer in a. longer time a. ill ita s towel take a longer or shorter time to dry? a. hat is condensation? ita has decided to dry her wet towel by hanging it on a clothesline in her garden. nstead of leaving her towel fully open, she folded it into half as shown below. 3 the glass, where it lost heat quickly before condensing into water droplets. from the surrounding air came into contact with the cold outer surface of he water and the glass were cooled by the ice cubes. ater vapour c. xplain the reason for your answer in b. Draw and label on the picture what you would see after the drink is left out in the open for five minutes. (upils should draw tiny water droplets on the outside of the glass and label them as water droplets.) b. om prepared himself a cold drink as shown below. the liquid state. t is the process where water vapour changes from the gaseous state to nswer the following questions. onsolidation orksheet ame: ook at the picture below and answer the following questions. hat s ondensation? 2 nswers to dditional eacher s esources tates of Matter: oiling, vaporation and ondensation hat Factors ffect the ate of vaporation? onsolidation orksheet ame: tates of Matter: oiling, vaporation and ondensation nswers to dditional eacher s esources hapter lston ublishing ouse te td

2012 lston ublishing ouse te td cience M eacher s Guide Grade 5 217 1: to form water vapour.

13 2012 lston ublishing ouse te td cience M eacher s Guide Grade : to form water vapour. nswers to dditional eacher s esources eat from the un will cause water to evaporate from the bodies of water c. xplain the water cycle process. b. Draw arrows on the diagram above to show the correct direction of the cycle. sky and back to the arth. t is the continuous movement of water from the arth s surface, to the a. hat is the water cycle? elow is a diagram that shows the water cycle. tudy the diagram and answer the questions that follow. 4 hat s the ater ycle? onsolidation orksheet ame: tates of Matter: oiling, vaporation and ondensation tates of Matter: oiling, vaporation and ondensation nswers to dditional eacher s esources there is a continuous supply of fresh water for survival. s all living things need water to stay alive, the water cycle ensures that d. hy is the water cycle important? over again. lakes and even underground, after which the water cycle will begin all 4: ainwater flows along the arth s surface and is collected in oceans, rivers, arth s surface as rain. 3: he water droplets become too heavy, before they fall back onto the together to form clouds. condense into water droplets. More water droplets will form and gather 2: he warm water vapour will rise, where it will meet the cooler air and will

14 5 dditional eacher s esources a running tap. ita can save water by washing the vegetables in a basin of water and not under ri can save water by using a bucket filled with water to wash the car instead. he examples below show water being wasted. hat can be done to save water in each of these examples? rite your answers below each picture. hy Do e eed to onserve ater? onsolidation orksheet ame: tates of Matter: oiling, vaporation and ondensation nswers to dditional eacher s esources nswers to dditional eacher s esources / using a watering can, which uses less water than a hose. Min can save water by re-using water for washing vegetables to water the plants hapter lston ublishing ouse te td

2012 lston ublishing ouse te td cience M eacher s Guide Grade 5 219 5 7 6 D 8 nswers to dditional eacher s esources Down: is a process where water vapour changes into water

on grass blades early in the morning. 8. e see cross: 3. he process where water changes from the liquid state to the gaseous state. is known as. 5.

iny water droplets make up D V 4 1 3 2 rossword uzzle! omplete the crossword puzzle using the clues given below.

hat do you think caused this difference? int: [1 mark] tates of Matter: oiling, vaporation and ondensation taken out from the shelf in the kitchen.

surrounding air met the cold surface of an, refrigerator. hen the warm water vapour in the an had a cold surface as it was taken out of the b.

15 2012 lston ublishing ouse te td cience M eacher s Guide Grade D 8 nswers to dditional eacher s esources Down: is a process where water vapour changes into water droplets. 1. is lost when water vapour changes into water droplets. 2. are living things that give off water vapour through their stomata. 4. on grass blades early in the morning. 8. e see cross: 3. he process where water changes from the liquid state to the gaseous state. is known as. 5. he falling of water droplets from the sky is also known as vapour through a process called respiration. 6. iving things give off that gather high up in the atmosphere. 7. iny water droplets make up D V rossword uzzle! omplete the crossword puzzle using the clues given below. Fun and Games ame: tates of Matter: oiling, vaporation and ondensation an bserve the two cans carefully. hat is the difference between the two? hat do you think caused this difference? int: [1 mark] tates of Matter: oiling, vaporation and ondensation taken out from the shelf in the kitchen. nswers to dditional eacher s esources an did not have any water droplets, and we can thus infer that it was condensation occurred to form the water droplets. surrounding air met the cold surface of an, refrigerator. hen the warm water vapour in the an had a cold surface as it was taken out of the b. xplain how you arrived at your answer in a. [2 marks] an. a. hich of the cans was taken out from the refrigerator? an he picture below shows two cans. ne of them was taken out from the refrigerator, while the other was taken out from a shelf in the kitchen. tudy the picture carefully and answer the questions that follow. rocess skills: bserving, nalysing, nferring xam ractice ame: tates of Matter: oiling, vaporation and ondensation

16 Glossary hapter 3: tates of Matter: oiling, vaporation and ondensation oiling oiling point ondensation he process of heating a liquid until it changes to a gas he temperature at which liquid boils he process in which water changes from the gaseous state to the liquid state hapter 3 vaporation xposed surface area umidity he process in which water gains heat and changes from a liquid state to a gaseous state rea of a substance exposed to air he amount of water vapour present in the air team ater vapour at 100 ate of evaporation ater conservation ater cycle ater vapour ow fast water changes from the liquid state to the gaseous state he practice of using water sparingly cycle that ensures there is a continuous supply of fresh water for all living things ater in the gaseous state 220 Glossary 2012 lston ublishing ouse te td

Changes of State pg K

Changes of State pg K Changes of State pg. 48-53 K Key Terms Melting melting point freezing vaporization Evaporation boiling boiling point condensation Sublimation 48K Picture an ice cream cone on a hot summer day. The ice