Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 318 · 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.True or false: honey is not needed for the dissolving test. (a) False (b) True
2. 2.🚁 Dropped from a raised hand, does an open sheet of paper fall slowly or fast? (a) falls fast (b) falls slowly
3. 3.🧺 Which of these is not needed for the density tower? (a) honey (b) a spoon (c) a mirror (d) cooking oil
4. 4.🧺 Do we need water for the water cycle bowl? (a) needed (b) not needed
5. 5.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
6. 6.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
7. 7.💧 Which of these is condensation? (a) a puddle drying up (b) sweat drying on skin (c) a misty bathroom mirror (d) making ice lollies
8. 8.True or false: a piece of thermocol sinks in water. (a) True (b) False
9. 9.True or false: dew on morning grass is condensation. (a) False (b) True
10. 10.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is the one thing we change? (a) the same card (b) whether the card stays (c) the same glass (d) how full the glass is
11. 11.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the order of pouring (b) the same glass (c) the same three liquids (d) the order of the layers
12. 12.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) anyone, without looking (d) a pet
13. 13.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) distance it travels (c) how big we blow it (d) the same tape
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
16. 16.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) snow falling (c) a small rainbow (d) a shadow of ice
17. 17.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a mirror (b) a sink or a bucket (c) a towel (d) a glass of water
18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
19. 19.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
20. 20.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
21. 21.🧺 Which of these is not needed for the paper helicopter? (a) a paper clip (b) a pencil (c) a magnet (d) a strip of paper
22. 22.True or false: drops under a pot lid is evaporation. (a) True (b) False
23. 23.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
24. 24.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) sweat drying on skin (b) wet hair drying (c) wet clothes drying (d) ice becoming water
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
27. 27.True or false: a balloon is needed for the dissolving test. (a) False (b) True
28. 28.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
30. 30.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
31. 31.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is the one thing we change? (a) the paper clip (b) the length of the blades (c) the person dropping (d) the kind of paper
32. 32.🍯 Which of these is denser than water? (a) a pebble (b) a cork (c) a ping-pong ball (d) air
33. 33.🛟 Which scissors should children use to cut the paper? (a) sharp kitchen shears (b) safety scissors (c) a paper cutter (d) gardening shears
34. 34.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) a balloon (c) a magnet (d) cotton wool
35. 35.True or false: a mirror is needed for the paper helicopter. (a) True (b) False
36. 36.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) green (c) red (d) violet
38. 38.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of the layers is the one thing we change. (a) True (b) False
39. 39.True or false: a mirror is needed for the water cycle bowl. (a) True (b) False
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a white flower (d) a battery cell

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