Water Cycle Experiment Worksheet

Science experiments lesson 9: Water cycle in a bowl · Set 821 · 40 questions

What you do (Up as vapour, down as drops): 1. Pour some water into the big bowl and stand the small cup in the middle. 2. Cover the bowl tightly with cling film. 3. Put a few ice cubes on top of the film, over the cup. 4. Leave it in the sun for an hour and look for drops in the cup.

1. 1.🔮 Predict: you put ice cubes on top of the cling film. What happens? (a) the water turns red (b) fewer drops form (c) the bowl freezes (d) more drops form
2. 2.🛟 Why should only a grown-up handle any hot water? (a) hot water can scald (b) hot water is magnetic (c) it changes colour (d) hot water is heavy
3. 3.📘 What is water vapour? (a) salty water (b) tiny ice cubes (c) a kind of smoke (d) water as a gas
4. 4.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “how many drops form”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.💧 Which change is this: wet hair drying? (a) condensation (b) evaporation (c) melting (d) freezing
6. 6.🔮 Predict: a bowl of water is left uncovered in the hot sun all day. What happens? (a) it turns to ice (b) some water evaporates (c) the water increases (d) it turns to salt
7. 7.💧 Which change is this: sweat drying on skin? (a) evaporation (b) condensation (c) melting (d) freezing
8. 8.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a balloon (b) a small cup (c) ice cubes (d) sunlight
9. 9.🛟 What should you do with wet floors after the experiment? (a) wipe them dry (b) slide on them (c) leave them wet (d) pour more water
10. 10.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is the one thing we change? (a) the amount of water (b) the time we wait (c) sun or shade (d) how many drops form
11. 11.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: how many drops form is kept the same. (a) True (b) False
12. 12.True or false: sunlight is not needed for the water cycle bowl. (a) False (b) True
13. 13.🧺 Do we need a balloon for the water cycle bowl? (a) needed (b) not needed
14. 14.🧺 Do we need a small cup for the water cycle bowl? (a) needed (b) not needed
15. 15.🔍 Which is the odd one out? (a) a misty bathroom mirror (b) drops on a cold glass (c) dew on morning grass (d) water becoming ice
16. 16.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a small cup (b) ice cubes (c) water (d) a battery cell
17. 17.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the time we wait”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.💧 Which change is this: a misty bathroom mirror? (a) freezing (b) melting (c) evaporation (d) condensation
19. 19.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) ice cubes (c) yeast (d) cling film
20. 20.💧 What happens to water vapour when it touches the cold cling film? (a) it turns to salt (b) it turns to drops (c) it turns to smoke (d) it disappears
21. 21.True or false: snow turning to water is condensation. (a) False (b) True
22. 22.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) ice cubes (b) cling film (c) a small cup (d) a magnet
23. 23.💧 Why do water drops form on the outside of a glass of ice water? (a) vapour in air cools (b) the glass leaks (c) ice escapes the glass (d) the glass sweats
24. 24.🔮 Predict: wet clothes are hung out on a sunny, windy day. How do they dry? (a) faster (b) they turn to ice (c) they never dry (d) slower
25. 25.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: how many drops form is what we measure. (a) True (b) False
26. 26.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) sunlight (b) cling film (c) a big bowl (d) turmeric powder
27. 27.💧 Which change is this: water becoming ice? (a) melting (b) freezing (c) condensation (d) evaporation
28. 28.True or false: water becoming ice is freezing. (a) False (b) True
29. 29.💧 Which of these is evaporation? (a) drops on a cold glass (b) drops under a pot lid (c) butter going runny (d) wet clothes drying
30. 30.💧 Which change is this: making ice lollies? (a) melting (b) evaporation (c) condensation (d) freezing
31. 31.🧺 Do we need a big bowl for the water cycle bowl? (a) not needed (b) needed
32. 32.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “sun or shade”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.True or false: yeast is not needed for the water cycle bowl. (a) False (b) True
34. 34.True or false: ice becoming water is freezing. (a) True (b) False
35. 35.🧺 Which of these is needed for the water cycle bowl? (a) yeast (b) a magnet (c) a balloon (d) cling film
36. 36.🧺 Which of these is needed for the water cycle bowl? (a) yeast (b) a battery cell (c) a mirror (d) ice cubes
37. 37.🧺 Do we need water for the water cycle bowl? (a) not needed (b) needed
38. 38.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the size of the bowl”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.True or false: a puddle drying up is freezing. (a) False (b) True
40. 40.True or false: a puddle drying up is evaporation. (a) True (b) False

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