Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 935 · 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.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it will not break (c) it is hotter (d) it is magnetic
2. 2.🧺 Do we need cling film for the water cycle bowl? (a) needed (b) not needed
3. 3.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) play near a deep pond (d) run around the tub
5. 5.True or false: a small cup is needed for the water cycle bowl. (a) True (b) False
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) yeast (c) a white flower (d) a glass of water
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
8. 8.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) straight down (d) backward
9. 9.True or false: table salt dissolves in water. (a) True (b) False
10. 10.🧺 Do we need a magnet for the paper helicopter? (a) not needed (b) needed
11. 11.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
12. 12.🧺 Which of these is not needed for the paper helicopter? (a) a strip of paper (b) turmeric powder (c) a pencil (d) safety scissors
13. 13.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
14. 14.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) turmeric powder (c) a glass of water (d) a sink or a bucket
15. 15.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
16. 16.🌈 In VIBGYOR, what number colour is violet?
17. 17.True or false: table salt does not dissolve in water. (a) False (b) True
18. 18.🧺 Which of these is needed for the water cycle bowl? (a) a magnet (b) a mirror (c) cling film (d) a battery cell
19. 19.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) cooking oil (d) food colour
20. 20.💧 Which of these is freezing? (a) dew on morning grass (b) a pond icing over (c) drops on a cold glass (d) ice becoming water
21. 21.🔍 Which is the odd one out? (a) food colour (b) sugar (c) small pebbles (d) glucose powder
22. 22.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the time of day”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
24. 24.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
25. 25.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil turns into honey (d) oil attracts magnets
26. 26.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) the order of pouring (b) the order of the layers (c) how much of each liquid (d) the same glass
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a magnet (d) a tub of water
28. 28.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a glass of water (c) a mirror (d) a towel
29. 29.💧 Which of these lets water climb up it? (a) a cotton thread (b) a rubber eraser (c) a steel spoon (d) a plastic ruler
30. 30.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) violet (c) red (d) green
31. 31.True or false: a mirror is not needed for the density tower. (a) False (b) True
32. 32.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
33. 33.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the same glass (b) the same white paper (c) the time of day (d) the amount of water
34. 34.🌈 How many colours do we name in a rainbow (VIBGYOR)?
35. 35.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) cling film (c) a balloon (d) ice cubes
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
37. 37.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a towel (c) a stiff postcard (d) a sink or a bucket
38. 38.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is kept the same. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of foil (c) a glass marble (d) a cotton thread

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