Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 509 · 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.🔍 Which is the odd one out? (a) an ice cube (b) an ice-cream stick (c) a ball of clay (d) a cork
2. 2.🛟 Which scissors should children use to cut the paper? (a) a paper cutter (b) safety scissors (c) gardening shears (d) sharp kitchen shears
3. 3.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
4. 4.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
5. 5.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it gets hot (c) so it does not fall (d) so it turns blue
6. 6.True or false: dew on morning grass is condensation. (a) True (b) False
7. 7.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) turmeric powder (c) water (d) cling film
8. 8.⚖️ 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 change it (c) we measure it
9. 9.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
10. 10.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
11. 11.🔍 Which is the odd one out? (a) a ping-pong ball (b) a glass marble (c) air (d) a cork
12. 12.True or false: an iron nail sinks in water. (a) True (b) False
13. 13.🌧️ The drops falling back into the bowl are like which part of the real water cycle? (a) rain (b) wind (c) lightning (d) sunshine
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the tub of water (b) the shape of the clay (c) the amount of clay (d) whether it floats
16. 16.🌈 How many colours do we name in a rainbow (VIBGYOR)?
17. 17.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
18. 18.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
19. 19.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) on a bed (c) over a laptop (d) near a plug point
20. 20.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) False (b) True
21. 21.⚖️ 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 “the order of the layers”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🛟 Why should only a grown-up handle any hot water? (a) hot water is magnetic (b) hot water can scald (c) it changes colour (d) hot water is heavy
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sunny window (c) a clear glass of water (d) a balloon
25. 25.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) blue (c) green (d) red
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) two chairs (d) a long string
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a magnet (c) a white flower (d) food colour
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
29. 29.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) taste each layer (c) pour it on the floor (d) throw the glass
30. 30.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) air from the balloon (d) the rocket
32. 32.True or false: turmeric powder is not needed for the paper helicopter. (a) False (b) True
33. 33.💧 Which of these lets water climb up it? (a) a steel spoon (b) a strip of cloth (c) a plastic ruler (d) a glass marble
34. 34.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
36. 36.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the densest (c) it is the stickiest (d) it is the coldest
37. 37.🔍 Which is the odd one out? (a) a glass marble (b) a flower stem (c) a piece of foil (d) a steel spoon
38. 38.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a mirror (b) a paper clip (c) safety scissors (d) a pencil
40. 40.🌈 In VIBGYOR, what number colour is red?

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