Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 183 · 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 of these falls fast through the air? (a) an open sheet of paper (b) a feather (c) a paper helicopter (d) a stone
2. 2.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals are magnetic (c) the stem is hot (d) petals lose water to air
3. 3.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is heavier (c) it will not break (d) it is magnetic
4. 4.🛟 Does a coin float or sink in water? (a) sinks (b) floats
5. 5.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a magnet (b) a ruler (c) a strip of paper (d) safety scissors
6. 6.⚖️ 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 same white paper (b) the time of day (c) brightness of rainbow (d) the same window
7. 7.True or false: a balloon is not needed for the card-on-a-glass trick. (a) False (b) True
8. 8.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
9. 9.🛟 What should you do with wet floors after the experiment? (a) leave them wet (b) slide on them (c) pour more water (d) wipe them dry
10. 10.🔍 Which is the odd one out? (a) a strip of cloth (b) a steel spoon (c) a glass marble (d) a plastic ruler
11. 11.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a teaspoon (c) two clear glasses (d) sugar
12. 12.True or false: the rocket goes forward. (a) False (b) True
13. 13.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is what we measure. (a) False (b) True
14. 14.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? What do we do with “the drop height”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a balloon (c) two clear glasses (d) cold water
16. 16.🌈 How many colours do we name in a rainbow (VIBGYOR)?
17. 17.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) yeast (b) safety scissors (c) a paper clip (d) a pencil
18. 18.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
19. 19.True or false: a fluff of cotton falls slowly through the air. (a) False (b) True
20. 20.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
21. 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) water with food colour (d) turmeric powder
22. 22.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
23. 23.True or false: a magnet is needed for the density tower. (a) False (b) True
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
25. 25.🧺 Do we need water for the water cycle bowl? (a) not needed (b) needed
26. 26.True or false: a ruler is needed for the paper helicopter. (a) False (b) True
27. 27.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they fall off at once (c) they turn two colours (d) they all turn green
28. 28.🚁 Dropped from a raised hand, does a crumpled paper ball fall slowly or fast? (a) falls fast (b) falls slowly
29. 29.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) over a sink or bucket (c) on a bed (d) over a laptop
30. 30.🔍 Which is the odd one out? (a) cooking oil (b) air (c) a cork (d) a pebble
31. 31.True or false: air from the balloon goes forward. (a) True (b) False
32. 32.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice cube (c) a coin (d) a ping-pong ball
34. 34.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the rowing boat (d) gas from the rocket
35. 35.⚖️ 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 kept the same. (a) True (b) False
36. 36.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) water (c) smoke (d) sand
37. 37.🧺 Which of these is needed for the paper helicopter? (a) a magnet (b) yeast (c) turmeric powder (d) safety scissors
38. 38.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) bubbles of gas (c) the glass gets hot (d) three separate layers
39. 39.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a balloon (c) honey (d) a spoon
40. 40.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True

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