Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 365 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) a magnet (d) two clear glasses
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) colour climbs up it (d) it sinks at once
4. 4.True or false: the swimmer goes backward. (a) False (b) True
5. 5.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
6. 6.⚖️ 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) False (b) True
7. 7.🧺 Which of these is needed for the paper helicopter? (a) a battery cell (b) a mirror (c) a balloon (d) safety scissors
8. 8.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.True or false: a strip of paper is not needed for the paper helicopter. (a) False (b) True
10. 10.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is kept the same. (a) False (b) True
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) distance it travels (d) the slope of the string
13. 13.True or false: sugar does not dissolve in water. (a) False (b) True
14. 14.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
15. 15.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a battery cell (c) a glass of water (d) a few hours of waiting
17. 17.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
18. 18.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) bubbles of gas (c) the glass gets hot (d) one mixed colour
19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
20. 20.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) red (c) blue (d) violet
21. 21.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
22. 22.🌈 In VIBGYOR, what number colour is orange?
23. 23.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) sunlight (b) yeast (c) a small cup (d) ice cubes
24. 24.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) sugar (d) a mirror
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to grow plants (c) to catch any spills (d) to make it rain
27. 27.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic chess set (c) a bicycle pump (d) a magnetic pin holder
28. 28.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
29. 29.🛟 Where is a safe place to drop the helicopter from? (a) a roof edge (b) a wobbly chair (c) from your raised hand (d) a high window ledge
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a drinking straw (c) a balloon (d) sticky tape
31. 31.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
32. 32.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is what we measure? (a) the same glass (b) whether the card stays (c) the same card (d) how full the glass is
33. 33.🧺 Which of these is not needed for the water cycle bowl? (a) cling film (b) water (c) a battery cell (d) sunlight
34. 34.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a sunny window (c) a battery cell (d) yeast
35. 35.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a ruler (b) safety scissors (c) a paper clip (d) turmeric powder
37. 37.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
38. 38.⚖️ 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
39. 39.💧 Which of these is melting? (a) ice becoming water (b) a puddle drying up (c) sweat drying on skin (d) dew on morning grass
40. 40.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a magnetic chess set (c) a drinking straw (d) a bicycle pump

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