Water Cycle Experiment Worksheet

Science experiments lesson 9: Water cycle in a bowl · Set 737 · 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.⚖️ 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) how many drops form (b) sun or shade (c) the amount of water (d) the size of the bowl
2. 2.True or false: a puddle drying up is condensation. (a) True (b) False
3. 3.True or false: yeast is not needed for the water cycle bowl. (a) False (b) True
4. 4.True or false: cling film is needed for the water cycle bowl. (a) False (b) True
5. 5.⚖️ 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 change it (b) we keep it the same (c) we measure it
6. 6.💧 Which of these is evaporation? (a) making ice lollies (b) wet clothes drying (c) a pond icing over (d) dew on morning grass
7. 7.True or false: butter going runny is evaporation. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) butter going runny (b) sweat drying on skin (c) wet clothes drying (d) wet hair drying
9. 9.True or false: a small cup is not needed for the water cycle bowl. (a) False (b) True
10. 10.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is what we measure? (a) the size of the bowl (b) how many drops form (c) sun or shade (d) the amount of water
11. 11.🧺 Which of these is needed for the water cycle bowl? (a) a small cup (b) a magnet (c) turmeric powder (d) a battery cell
12. 12.🛟 What should you do with wet floors after the experiment? (a) wipe them dry (b) pour more water (c) leave them wet (d) slide on them
13. 13.⚖️ 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
14. 14.💧 Why do water drops form on the outside of a glass of ice water? (a) vapour in air cools (b) the glass sweats (c) the glass leaks (d) ice escapes the glass
15. 15.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) turmeric powder (b) a big bowl (c) sunlight (d) cling film
16. 16.💧 Which change is this: drops on a cold glass? (a) evaporation (b) freezing (c) melting (d) condensation
17. 17.💧 Which change is this: wet clothes drying? (a) freezing (b) melting (c) evaporation (d) condensation
18. 18.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a small cup (b) a magnet (c) ice cubes (d) cling film
19. 19.💧 Which change is this: dew on morning grass? (a) evaporation (b) melting (c) condensation (d) freezing
20. 20.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the time we wait is the one thing we change. (a) True (b) False
21. 21.💧 Which change is this: sweat drying on skin? (a) freezing (b) condensation (c) evaporation (d) melting
22. 22.🔮 Predict: wet clothes are hung out on a sunny, windy day. How do they dry? (a) faster (b) they never dry (c) slower (d) they turn to ice
23. 23.💧 In the covered bowl, where does the water vapour come from? (a) the air outside (b) water warmed by the Sun (c) the bowl itself (d) the cling film
24. 24.🛟 Why should only a grown-up handle any hot water? (a) it changes colour (b) hot water can scald (c) hot water is heavy (d) hot water is magnetic
25. 25.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the size of the bowl is kept the same. (a) True (b) False
26. 26.🔮 Predict: you put ice cubes on top of the cling film. What happens? (a) the bowl freezes (b) fewer drops form (c) the water turns red (d) more drops form
27. 27.🔍 Which is the odd one out? (a) butter going runny (b) snow turning to water (c) ice becoming water (d) a pond icing over
28. 28.🧺 Do we need a mirror for the water cycle bowl? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) ice cubes (c) water (d) yeast
30. 30.⚖️ 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) False (b) True
31. 31.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) sunlight (b) a big bowl (c) a small cup (d) a balloon
32. 32.📘 What is water vapour? (a) tiny ice cubes (b) salty water (c) a kind of smoke (d) water as a gas
33. 33.True or false: cling film is not needed for the water cycle bowl. (a) True (b) False
34. 34.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the cling film cover is what we measure. (a) True (b) False
35. 35.True or false: wet hair drying is condensation. (a) False (b) True
36. 36.🌧️ The drops falling back into the bowl are like which part of the real water cycle? (a) wind (b) lightning (c) rain (d) sunshine
37. 37.🧺 Do we need a magnet 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? True or false: sun or shade is the one thing we change. (a) False (b) True
39. 39.💧 What happens to water vapour when it touches the cold cling film? (a) it turns to smoke (b) it disappears (c) it turns to drops (d) it turns to salt
40. 40.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: sun or shade is what we measure. (a) True (b) False

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