Water Cycle Experiment Worksheet

Science experiments lesson 9: Water cycle in a bowl · Set 643 · 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 ice (b) it turns to salt (c) the water increases (d) some water evaporates
2. 2.💧 Which of these is condensation? (a) a pond icing over (b) drops under a pot lid (c) a puddle drying up (d) wet clothes drying
3. 3.🌧️ The drops falling back into the bowl are like which part of the real water cycle? (a) rain (b) sunshine (c) wind (d) lightning
4. 4.🛟 What should you do with wet floors after the experiment? (a) pour more water (b) wipe them dry (c) slide on them (d) leave them wet
5. 5.True or false: a small cup is not needed for the water cycle bowl. (a) True (b) False
6. 6.🧺 Do we need turmeric powder for the water cycle bowl? (a) needed (b) not needed
7. 7.🧺 Do we need cling film for the water cycle bowl? (a) not needed (b) needed
8. 8.🛟 Why should only a grown-up handle any hot water? (a) hot water is heavy (b) it changes colour (c) hot water is magnetic (d) hot water can scald
9. 9.True or false: a big bowl is not needed for the water cycle bowl. (a) False (b) True
10. 10.💧 What happens to water vapour when it touches the cold cling film? (a) it turns to drops (b) it turns to salt (c) it disappears (d) it turns to smoke
11. 11.True or false: sweat drying on skin is melting. (a) True (b) False
12. 12.💧 Which of these is melting? (a) drops on a cold glass (b) butter going runny (c) a pond icing over (d) water becoming ice
13. 13.💧 Which change is this: drops under a pot lid? (a) evaporation (b) condensation (c) melting (d) freezing
14. 14.⚖️ 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
15. 15.💧 Why do water drops form on the outside of a glass of ice water? (a) the glass leaks (b) ice escapes the glass (c) vapour in air cools (d) the glass sweats
16. 16.💧 Which change is this: wet hair drying? (a) condensation (b) melting (c) evaporation (d) freezing
17. 17.True or false: a mirror is needed for the water cycle bowl. (a) False (b) True
18. 18.🔮 Predict: wet clothes are hung out on a sunny, windy day. How do they dry? (a) they turn to ice (b) faster (c) they never dry (d) slower
19. 19.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🔍 Which is the odd one out? (a) dew on morning grass (b) a pond icing over (c) drops under a pot lid (d) drops on a cold glass
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the water cycle bowl? (a) cling film (b) ice cubes (c) a balloon (d) water
23. 23.⚖️ 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 the one thing we change. (a) False (b) True
24. 24.True or false: yeast is needed for the water cycle bowl. (a) True (b) False
25. 25.True or false: sweat drying on skin is freezing. (a) True (b) False
26. 26.💧 Which of these is melting? (a) water becoming ice (b) dew on morning grass (c) snow turning to water (d) a misty bathroom mirror
27. 27.💧 Which of these is evaporation? (a) dew on morning grass (b) making ice lollies (c) ice becoming water (d) sweat drying on skin
28. 28.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) water (b) a magnet (c) sunlight (d) a big bowl
29. 29.🧺 Which of these is not needed for the water cycle bowl? (a) ice cubes (b) a small cup (c) sunlight (d) a magnet
30. 30.⚖️ 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 time we wait (b) the amount of water (c) the size of the bowl (d) how many drops form
31. 31.⚖️ 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) sun or shade (c) the size of the bowl (d) the time we wait
32. 32.⚖️ 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 keep it the same (b) we measure it (c) we change it
33. 33.💧 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
34. 34.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is kept the same? (a) sun or shade (b) how many drops form (c) the time we wait
35. 35.💧 Which of these is freezing? (a) drops under a pot lid (b) water becoming ice (c) a puddle drying up (d) sweat drying on skin
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the amount of water is kept the same. (a) True (b) False
38. 38.💧 Which change is this: a puddle drying up? (a) freezing (b) melting (c) condensation (d) evaporation
39. 39.🔍 Which is the odd one out? (a) making ice lollies (b) water becoming ice (c) a pond icing over (d) ice becoming water
40. 40.🧺 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) a small cup

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