Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 549 · 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? True or false: how full the glass is is the one thing we change. (a) True (b) False
2. 2.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a vacuum cleaner (c) a bicycle pump (d) a suction hook
3. 3.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the cling film cover is kept the same. (a) True (b) False
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
6. 6.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) True (b) False
7. 7.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a magnet (d) a few hours of waiting
8. 8.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it is sprayed on (c) it rains on them (d) through the air
9. 9.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a mirror (c) a stiff postcard (d) turmeric powder
10. 10.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
11. 11.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
12. 12.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
13. 13.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: sun or shade is what we measure. (a) False (b) True
14. 14.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
15. 15.True or false: ice becoming water is condensation. (a) True (b) False
16. 16.True or false: a steel spoon does not let water climb. (a) False (b) True
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the amount of sugar
18. 18.⚖️ 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 kept the same. (a) True (b) False
19. 19.🍯 Which of these is less dense than water? (a) a pebble (b) cooking oil (c) a coin (d) very salty water
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) yeast (d) a balloon
21. 21.True or false: the rocket goes backward. (a) False (b) True
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the same tape (d) the slope of the string
23. 23.⚖️ 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 kept the same. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) water becoming ice (b) wet hair drying (c) a pond icing over (d) making ice lollies
25. 25.🛟 Which scissors should children use to cut the paper? (a) gardening shears (b) safety scissors (c) a paper cutter (d) sharp kitchen shears
26. 26.🧺 Do we need a strip of paper for the paper helicopter? (a) not needed (b) needed
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the stirring (c) the water temperature (d) the amount of water
28. 28.🔍 Which is the odd one out? (a) a pond icing over (b) water becoming ice (c) snow turning to water (d) making ice lollies
29. 29.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) cooking oil (d) table salt
30. 30.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a sink or a bucket (c) a towel (d) a glass of water
31. 31.🧺 Which of these is not needed for the paper helicopter? (a) a paper clip (b) a balloon (c) a ruler (d) a pencil
32. 32.🔮 Predict: you add two more paper clips. How does it fall? (a) faster (b) it floats up (c) slower (d) it stops in the air
33. 33.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they separate again (d) they become solid
34. 34.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
35. 35.🌈 How many colours do we name in a rainbow (VIBGYOR)?
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.True or false: a drinking straw works by air pressure. (a) False (b) True
38. 38.True or false: a mirror is needed for the water cycle bowl. (a) False (b) True
39. 39.⚖️ 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 kind of flower (b) the amount of colour (c) time for colour to show (d) the room it stands in
40. 40.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) a clock or timer (d) honey

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