Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 173 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a magnet (d) two chairs
2. 2.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
3. 3.True or false: a fluff of cotton falls slowly through the air. (a) True (b) False
4. 4.🔮 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
5. 5.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) whether it floats (d) the tub of water
7. 7.🔍 Which is the odd one out? (a) water becoming ice (b) making ice lollies (c) snow turning to water (d) a pond icing over
8. 8.True or false: baking soda dissolves in water. (a) False (b) True
9. 9.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the cap is sticky (b) air inside pushes back (c) water is hiding there (d) the bottle is magnetic
10. 10.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) sunlight (c) water (d) yeast
11. 11.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) clouds (d) balloons
12. 12.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is what we measure? (a) whether the card stays (b) how full the glass is (c) the same glass (d) the way we turn it
13. 13.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) yeast (d) a clear glass of water
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the amount of clay
15. 15.True or false: yeast is needed for the water cycle bowl. (a) False (b) True
16. 16.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a glass of water (c) turmeric powder (d) a mirror
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the amount of sugar (c) time to dissolve (d) the water temperature
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) a balloon
19. 19.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a piece of foil (c) a steel spoon (d) a glass marble
20. 20.True or false: a magnet is needed for the density tower. (a) False (b) True
21. 21.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) ice cubes (b) a big bowl (c) water (d) a mirror
22. 22.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is the densest (c) it is the stickiest (d) it is yellow
23. 23.🧺 Do we need a big bowl for the water cycle bowl? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) two chairs (d) sticky tape
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a tub of water (d) yeast
26. 26.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) sand (d) food colour
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) a long string (d) a balloon
28. 28.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is the one thing we change? (a) the kind of paper (b) the person dropping (c) the length of the blades (d) time to reach the floor
29. 29.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
30. 30.🔍 Which is the odd one out? (a) a paper helicopter (b) a stone (c) a feather (d) a toy parachute
31. 31.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a cork (d) a dry leaf
32. 32.💧 Which of these is condensation? (a) snow turning to water (b) wet clothes drying (c) ice becoming water (d) drops on a cold glass
33. 33.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
34. 34.🧺 Do we need turmeric powder for the paper helicopter? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) cold water (d) a comb
36. 36.🥄 Which of these does not dissolve in water? (a) sugar (b) sand (c) food colour (d) table salt
37. 37.True or false: a dry leaf sinks in water. (a) True (b) False
38. 38.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is what we measure? (a) the drop height (b) time to reach the floor (c) the person dropping (d) the length of the blades
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) cooking oil (d) yeast
40. 40.⚖️ 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

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