Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 560 · 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 the card stay on with a full glass and with a half-full glass? What do we do with “the same card”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.True or false: water with food colour is needed for the density tower. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) a piece of thermocol (b) a glass marble (c) an empty capped bottle (d) an ice cube
4. 4.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) turmeric powder (d) a long string
6. 6.True or false: a plastic ruler does not let water climb. (a) False (b) True
7. 7.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
8. 8.🧺 Do we need a small cup for the water cycle bowl? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) a glass marble (b) a metal key (c) a ball of clay (d) a piece of thermocol
10. 10.True or false: snow turning to water is melting. (a) False (b) True
11. 11.True or false: a magnet is needed for the card-on-a-glass trick. (a) False (b) True
12. 12.True or false: a metal key floats on water. (a) False (b) True
13. 13.🧺 Do we need water for the water cycle bowl? (a) needed (b) not needed
14. 14.⚖️ 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) how much of each liquid (b) the order of the layers (c) the same three liquids (d) the same glass
15. 15.⚖️ 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) False (b) True
16. 16.🔍 Which is the odd one out? (a) a pebble (b) very salty water (c) air (d) a coin
17. 17.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
18. 18.🔮 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 all turn green (c) they turn two colours (d) they fall off at once
19. 19.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a ruler (b) a paper clip (c) a balloon (d) a strip of paper
20. 20.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) red (c) orange (d) yellow
21. 21.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is magnetic (c) it is hotter (d) it will not break
22. 22.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same window”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a towel for spills (d) turmeric powder
25. 25.True or false: a plastic ruler lets water climb up it. (a) True (b) False
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) turmeric powder (d) a towel for spills
27. 27.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
28. 28.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) 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 “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
31. 31.💧 Which of these is melting? (a) sweat drying on skin (b) wet hair drying (c) butter going runny (d) dew on morning grass
32. 32.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) True (b) False
33. 33.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the time we wait is what we measure. (a) False (b) True
34. 34.True or false: a balloon is not needed for the coloured flower experiment. (a) True (b) False
35. 35.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) under the honey (c) on top of the oil (d) in the honey layer
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) yeast (d) two chairs
37. 37.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of foil (c) a paper towel (d) a glass marble
38. 38.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the drop height is what we measure. (a) True (b) False
39. 39.🧺 Which of these is needed for the paper helicopter? (a) a ruler (b) a balloon (c) turmeric powder (d) a mirror
40. 40.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed

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