Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 459 · 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.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
2. 2.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
3. 3.🚁 Dropped from a raised hand, does a steel spoon fall slowly or fast? (a) falls fast (b) falls slowly
4. 4.🛟 Where is a safe place to drop the helicopter from? (a) a roof edge (b) a wobbly chair (c) a high window ledge (d) from your raised hand
5. 5.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) a coin (d) an ice cube
6. 6.🌈 How many colours do we name in a rainbow (VIBGYOR)?
7. 7.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) turmeric powder (d) a drinking straw
9. 9.🧺 Do we need a big bowl for the water cycle bowl? (a) needed (b) not needed
10. 10.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.💧 Which change is this: drops under a pot lid? (a) evaporation (b) condensation (c) freezing (d) melting
12. 12.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) a glass marble (d) an ice cube
13. 13.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
16. 16.🧺 Which of these is needed for the water cycle bowl? (a) yeast (b) a balloon (c) a big bowl (d) a magnet
17. 17.⚖️ 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
18. 18.⚖️ 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 glass
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) small test objects (d) a battery cell
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) small test objects
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) a long string (d) two chairs
22. 22.⚖️ 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 same three liquids (b) the order of pouring (c) the order of the layers (d) how much of each liquid
23. 23.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) the length of the stem (b) the room it stands in (c) time for colour to show
24. 24.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) in the honey layer (d) on top of the oil
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a results table (d) a tub of water
26. 26.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) a towel (d) a magnet
27. 27.⚖️ 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
28. 28.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold
29. 29.🔮 Predict: you add two more paper clips. How does it fall? (a) slower (b) faster (c) it stops in the air (d) it floats up
30. 30.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a paper clip (b) a pencil (c) a magnet (d) safety scissors
31. 31.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) chalk powder (d) sugar
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a long string (d) yeast
33. 33.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🔍 Which is the odd one out? (a) making ice lollies (b) a pond icing over (c) water becoming ice (d) wet clothes drying
35. 35.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
36. 36.🌈 In VIBGYOR, what number colour is indigo?
37. 37.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) water from the oars (d) the swimmer
38. 38.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a white flower (c) turmeric powder (d) a battery cell
40. 40.🌈 In VIBGYOR, what number colour is orange?

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