Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 999 · 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.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
2. 2.🔮 A flat sheet and a crumpled ball of the same paper drop together. Which lands first? (a) the crumpled ball (b) neither of them (c) a sheet of glass (d) the flat sheet
3. 3.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it sinks at once (c) colour climbs up it (d) it turns to plastic
4. 4.🔍 Which is the odd one out? (a) a stone (b) an open sheet of paper (c) a feather (d) a toy parachute
5. 5.True or false: a magnet is needed for the dissolving test. (a) False (b) True
6. 6.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is kept the same. (a) False (b) True
7. 7.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
8. 8.🧺 Which of these is needed for the density tower? (a) a balloon (b) honey (c) turmeric powder (d) yeast
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
10. 10.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) in the oil layer (d) at the very bottom
11. 11.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) sugar (c) honey (d) a comb
12. 12.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is the one thing we change? (a) the cling film cover (b) the size of the bowl (c) sun or shade (d) the time we wait
13. 13.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the length of the stem is what we measure. (a) True (b) False
15. 15.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a cork (c) a pebble (d) air
16. 16.🧺 Which of these is not needed for the water cycle bowl? (a) yeast (b) water (c) cling film (d) a big bowl
17. 17.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the amount of water (c) the same white paper
18. 18.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
19. 19.🧺 Which of these is needed for the paper helicopter? (a) a balloon (b) a magnet (c) a ruler (d) a battery cell
20. 20.🔍 Which is the odd one out? (a) a coin (b) an ice cube (c) a steel spoon (d) an iron nail
21. 21.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a balloon (c) a sunny window (d) a clear glass of water
22. 22.⚖️ 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 pouring is the one thing we change. (a) True (b) False
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) yeast (d) small test objects
24. 24.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a magnetic chess set (c) a compass needle (d) a vacuum cleaner
25. 25.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) True (b) False
26. 26.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a mirror (b) a paper clip (c) a strip of paper (d) a ruler
27. 27.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
29. 29.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) water (c) smoke (d) air
30. 30.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it floats (d) it bounces up
31. 31.🌧️ The drops falling back into the bowl are like which part of the real water cycle? (a) sunshine (b) rain (c) lightning (d) wind
32. 32.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) cling film (c) a magnet (d) sunlight
33. 33.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
34. 34.🧺 Which of these is needed for the water cycle bowl? (a) a magnet (b) a mirror (c) yeast (d) ice cubes
35. 35.🚁 Why do we clip a paper clip to the bottom of the helicopter? (a) to weigh down the bottom (b) to stop the spinning (c) to make it magnetic (d) to make it fall slower
36. 36.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
37. 37.True or false: gas from the rocket goes backward. (a) True (b) False
38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) False (b) True
39. 39.True or false: table salt dissolves in water. (a) True (b) False
40. 40.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is kept the same. (a) False (b) True

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