Water Cycle Experiment Worksheet

Science experiments lesson 9: Water cycle in a bowl · Set 971 · 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: a bowl of water is left uncovered in the hot sun all day. What happens? (a) it turns to salt (b) it turns to ice (c) the water increases (d) some water evaporates
2. 2.🧺 Which of these is needed for the water cycle bowl? (a) turmeric powder (b) sunlight (c) a mirror (d) yeast
3. 3.True or false: dew on morning grass is condensation. (a) False (b) True
4. 4.True or false: water is not needed for the water cycle bowl. (a) True (b) False
5. 5.🧺 Do we need a balloon for the water cycle bowl? (a) not needed (b) needed
6. 6.True or false: turmeric powder is not needed for the water cycle bowl. (a) True (b) False
7. 7.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) sunlight (b) water (c) cling film (d) a magnet
8. 8.True or false: cling film is needed for the water cycle bowl. (a) True (b) False
9. 9.🔮 Predict: you put ice cubes on top of the cling film. What happens? (a) fewer drops form (b) the bowl freezes (c) more drops form (d) the water turns red
10. 10.🌧️ The drops falling back into the bowl are like which part of the real water cycle? (a) wind (b) lightning (c) rain (d) sunshine
11. 11.⚖️ 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 the one thing we change. (a) False (b) True
12. 12.🛟 Why should only a grown-up handle any hot water? (a) it changes colour (b) hot water is heavy (c) hot water can scald (d) hot water is magnetic
13. 13.⚖️ 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) sun or shade (c) how many drops form (d) the cling film cover
14. 14.🧺 Do we need turmeric powder for the water cycle bowl? (a) needed (b) not needed
15. 15.🧺 Which of these is not needed for the water cycle bowl? (a) water (b) sunlight (c) a magnet (d) a small cup
16. 16.🧺 Which of these is needed for the water cycle bowl? (a) yeast (b) a balloon (c) a small cup (d) a magnet
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 change it (b) we measure it (c) we keep it the same
18. 18.🧺 Do we need cling film for the water cycle bowl? (a) not needed (b) needed
19. 19.🧺 Do we need a battery cell for the water cycle bowl? (a) not needed (b) needed
20. 20.True or false: butter going runny is melting. (a) True (b) False
21. 21.⚖️ 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 what we measure. (a) True (b) False
22. 22.🧺 Do we need a small cup for the water cycle bowl? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.📘 What is water vapour? (a) salty water (b) tiny ice cubes (c) a kind of smoke (d) water as a gas
25. 25.💧 Which change is this: wet hair drying? (a) condensation (b) melting (c) evaporation (d) freezing
26. 26.💧 Why do water drops form on the outside of a glass of ice water? (a) ice escapes the glass (b) the glass sweats (c) the glass leaks (d) vapour in air cools
27. 27.True or false: cling film is not needed for the water cycle bowl. (a) True (b) False
28. 28.⚖️ 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
29. 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
30. 30.True or false: a big bowl is not needed for the water cycle bowl. (a) True (b) False
31. 31.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: sun or shade is kept the same. (a) False (b) True
32. 32.💧 Which of these is freezing? (a) making ice lollies (b) drops on a cold glass (c) a misty bathroom mirror (d) drops under a pot lid
33. 33.💧 Which change is this: a puddle drying up? (a) freezing (b) evaporation (c) melting (d) condensation
34. 34.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) ice cubes (b) sunlight (c) cling film (d) a balloon
35. 35.💧 In the covered bowl, where does the water vapour come from? (a) the air outside (b) the cling film (c) water warmed by the Sun (d) the bowl itself
36. 36.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the cling film cover”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.True or false: butter going runny is evaporation. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) water becoming ice (b) making ice lollies (c) a pond icing over (d) wet clothes drying
39. 39.True or false: drops on a cold glass is condensation. (a) False (b) True
40. 40.True or false: turmeric powder is needed for the water cycle bowl. (a) True (b) False

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