Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 488 · 40 questions

What you do (Find the experiment, use the idea): 1. Read the question and find its experiment. 2. Use that experiment’s idea — density, dissolving, capillary action, light bending, air pressure, push-back, air resistance or condensation. 3. For a fair-test question, find what is changed, kept the same and measured. 4. For a safety question, choose what keeps everyone safe.

1. 1.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
2. 2.🧺 Do we need a strip of paper for the paper helicopter? (a) not needed (b) needed
3. 3.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
4. 4.🧺 Do we need turmeric powder for the water cycle bowl? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.True or false: turmeric powder is not needed for the water cycle bowl. (a) True (b) False
7. 7.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the rowing boat (d) water from the oars
8. 8.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) keep them in your mouth (d) throw them away safely
9. 9.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
10. 10.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) yeast (b) a big bowl (c) sunlight (d) water
11. 11.🚁 Dropped from a raised hand, does a stone fall slowly or fast? (a) falls slowly (b) falls fast
12. 12.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
13. 13.🌧️ The drops falling back into the bowl are like which part of the real water cycle? (a) rain (b) lightning (c) wind (d) sunshine
14. 14.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the amount of water (b) the time of day (c) brightness of rainbow
15. 15.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is the one thing we change. (a) False (b) True
16. 16.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the paper makes colours (c) water splits the light (d) the glass is painted
17. 17.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the room it stands in is what we measure. (a) False (b) True
18. 18.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a battery cell (c) a clear glass of water (d) a sunny window
19. 19.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a balloon (c) a stiff postcard (d) a sink or a bucket
20. 20.🌈 In VIBGYOR, what number colour is red?
21. 21.True or false: a balloon is needed for the dissolving test. (a) False (b) True
22. 22.🌈 How many colours do we name in a rainbow (VIBGYOR)?
23. 23.True or false: turmeric powder is not needed for the paper helicopter. (a) True (b) False
24. 24.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is the one thing we change? (a) time for colour to show (b) the amount of colour (c) the length of the stem (d) the kind of flower
26. 26.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) water a swimmer pushes (d) the rowing boat
27. 27.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it will not break (c) it is heavier (d) it is magnetic
29. 29.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a magnet (c) bright sunlight (d) a battery cell
30. 30.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) True (b) False
31. 31.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the flower floats away (c) the petals turn bluish (d) the stem turns to ice
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
35. 35.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a balloon (d) a mirror
37. 37.True or false: a glass marble floats on water. (a) True (b) False
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a tub of water (d) a results table
39. 39.True or false: a balloon is not needed for the card-on-a-glass trick. (a) False (b) True
40. 40.💧 Which of these is condensation? (a) dew on morning grass (b) a puddle drying up (c) snow turning to water (d) wet hair drying

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