Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 561 · 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.🌈 In VIBGYOR, what number colour is yellow?
2. 2.🔍 Which is the odd one out? (a) a metal key (b) an ice-cream stick (c) a coin (d) a steel spoon
3. 3.True or false: snow turning to water is melting. (a) False (b) True
4. 4.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a balloon (c) a sunny window (d) yeast
5. 5.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a long string (d) a mirror
7. 7.🔍 Which is the odd one out? (a) a crumpled paper ball (b) a steel spoon (c) a glass marble (d) an open sheet of paper
8. 8.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) sugar (d) chalk powder
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) a balloon (d) a towel for spills
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.True or false: a glass marble lets water climb up it. (a) True (b) False
12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it floats up (d) it settles at the bottom
13. 13.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) a ping-pong ball (d) a cork
14. 14.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “whether the card stays”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.True or false: a paper helicopter falls slowly through the air. (a) False (b) True
16. 16.🧺 Which of these is not needed for the paper helicopter? (a) safety scissors (b) a ruler (c) a pencil (d) a battery cell
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
18. 18.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
19. 19.🧺 Which of these is not needed for the water cycle bowl? (a) water (b) sunlight (c) a magnet (d) cling film
20. 20.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wash your hands (d) wipe them on walls
21. 21.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
22. 22.🥄 Which of these dissolves in water? (a) baking soda (b) chalk powder (c) cooking oil (d) sand
23. 23.🛟 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) run around the tub (d) leave water on the floor
24. 24.🔍 Which is the odd one out? (a) a glass marble (b) honey (c) a ping-pong ball (d) a coin
25. 25.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
26. 26.⚖️ 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 pouring”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) do not lick the spoon (c) pour it on the floor (d) taste each layer
28. 28.True or false: a magnet is needed for the paper helicopter. (a) True (b) False
29. 29.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a magnet (d) a solution
30. 30.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) turmeric powder (c) a stiff postcard (d) a magnet
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we measure it (c) we change it
32. 32.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: how full the glass is is the one thing we change. (a) True (b) False
33. 33.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) gas from the rocket (d) air from the balloon
34. 34.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the way we turn it is the one thing we change. (a) True (b) False
35. 35.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
36. 36.⚖️ 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 keep it the same (b) we change it (c) we measure it
37. 37.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
38. 38.🌧️ The drops falling back into the bowl are like which part of the real water cycle? (a) wind (b) lightning (c) rain (d) sunshine
39. 39.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: time to reach the floor is the one thing we change. (a) False (b) True
40. 40.🚁 Why does the paper helicopter fall slowly? (a) a magnet holds it (b) it has no weight (c) the floor pushes it (d) air pushes on its blades

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids