Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 510 · 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.🔮 A flat sheet and a crumpled ball of the same paper drop together. Which lands first? (a) a sheet of glass (b) neither of them (c) the flat sheet (d) the crumpled ball
2. 2.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) two chairs (d) a drinking straw
4. 4.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) in the oil layer (d) at the very bottom
5. 5.True or false: the rowing boat goes backward. (a) False (b) True
6. 6.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) a cork (d) honey
7. 7.True or false: a battery cell is needed for the water cycle bowl. (a) True (b) False
8. 8.True or false: water a swimmer pushes goes forward. (a) True (b) False
9. 9.🛟 Which of these sinks in water? (a) a cork (b) a coin (c) a piece of thermocol (d) a dry leaf
10. 10.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
11. 11.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the kind of paper is what we measure. (a) False (b) True
12. 12.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
13. 13.🧺 Do we need a small cup for the water cycle bowl? (a) needed (b) not needed
14. 14.True or false: a steel spoon lets water climb up it. (a) False (b) True
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a battery cell (d) a white flower
16. 16.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) warm water is thicker (d) sugar likes the dark
17. 17.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is kept the same? (a) how full the glass is (b) whether the card stays (c) the way we turn it
18. 18.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) the amount of colour (b) time for colour to show (c) the length of the stem (d) the kind of flower
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a spoon (c) cooking oil (d) honey
20. 20.⚖️ 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 glass (b) brightness of rainbow (c) the time of day (d) the amount of water
21. 21.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) on a bed (c) over a sink or bucket (d) near a plug point
22. 22.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) stare at the Sun (c) look at it through glass (d) never look at the Sun
23. 23.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a magnet (c) a teaspoon (d) a clock or timer
24. 24.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) bright sunlight (d) yeast
25. 25.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) a glass of water (d) yeast
26. 26.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
27. 27.💧 Which of these is melting? (a) wet hair drying (b) ice becoming water (c) a pond icing over (d) making ice lollies
28. 28.🧺 Which of these is not needed for the water cycle bowl? (a) a big bowl (b) a small cup (c) water (d) a mirror
29. 29.🔍 Which is the odd one out? (a) a glass marble (b) a cork (c) a pebble (d) a coin
30. 30.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) sand (d) chalk powder
31. 31.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “how many drops form”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.True or false: a piece of thermocol sinks in water. (a) False (b) True
33. 33.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a sink or a bucket (b) a towel (c) a magnet (d) a glass of water
35. 35.🥛 Which of these works by air pressure? (a) a vacuum cleaner (b) a magnetic pin holder (c) a compass needle (d) a fridge magnet
36. 36.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
37. 37.⚖️ 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
38. 38.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of foil (c) a plastic ruler (d) a paper towel
39. 39.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) coloured water (c) cooking oil (d) honey
40. 40.🌈 In VIBGYOR, what number colour is green?

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