Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 996 · 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.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the length of the stem is what we measure. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) a pebble (d) honey
3. 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a magnet (d) a tall clear glass
4. 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a mirror (c) a tall clear glass (d) water with food colour
5. 5.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to grow plants (c) to cool the glass (d) to catch any spills
6. 6.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
7. 7.True or false: a balloon is needed for the dissolving test. (a) True (b) False
8. 8.⚖️ 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
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it dissolves (d) it turns white
10. 10.🛟 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
11. 11.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
12. 12.⚖️ 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) how many drops form (b) sun or shade (c) the amount of water (d) the cling film cover
13. 13.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) small pebbles (d) table salt
14. 14.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) yeast (c) turmeric powder (d) a battery cell
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) yeast (c) turmeric powder (d) vinegar
16. 16.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
19. 19.🧺 Which of these is needed for the density tower? (a) water with food colour (b) yeast (c) a balloon (d) a mirror
20. 20.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the amount of water (b) brightness of rainbow (c) the same glass (d) the time of day
21. 21.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
22. 22.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
23. 23.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a small cup (b) a big bowl (c) water (d) a mirror
24. 24.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) water a swimmer pushes
25. 25.True or false: a cork is denser than water. (a) False (b) True
26. 26.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
28. 28.🧺 Do we need a balloon for the water cycle bowl? (a) needed (b) not needed
29. 29.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “how much of each liquid”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.🧺 Do we need a balloon for the paper helicopter? (a) not needed (b) needed
31. 31.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the rocket (d) gas from the rocket
32. 32.🔮 A flat sheet and a crumpled ball of the same paper drop together. Which lands first? (a) the crumpled ball (b) a sheet of glass (c) neither of them (d) the flat sheet
33. 33.🔍 Which is the odd one out? (a) water becoming ice (b) a pond icing over (c) ice becoming water (d) making ice lollies
34. 34.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
35. 35.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the same card”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) vinegar (d) a balloon
37. 37.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? What do we do with “the length of the blades”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) pour it on the floor (c) do not lick the spoon (d) throw the glass
39. 39.🌈 In VIBGYOR, what number colour is indigo?
40. 40.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) chalk powder (d) table salt

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