Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 909 · 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.True or false: sugar is not needed for the dissolving test. (a) True (b) False
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a sink or a bucket (c) a magnet (d) a stiff postcard
4. 4.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a small cup (b) ice cubes (c) turmeric powder (d) water
5. 5.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is what we measure. (a) True (b) False
6. 6.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
7. 7.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a toddler (d) a grown-up
8. 8.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
9. 9.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the kind of flower”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the person dropping is what we measure. (a) False (b) True
11. 11.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a sink or a bucket (c) a balloon (d) a towel
13. 13.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
14. 14.🍯 Which of these is less dense than water? (a) a pebble (b) honey (c) an ice cube (d) a glass marble
15. 15.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a white flower (d) turmeric powder
18. 18.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is the one thing we change? (a) the length of the stem (b) the kind of flower (c) the amount of colour (d) the room it stands in
19. 19.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a mirror (d) small test objects
21. 21.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: how many drops form is what we measure. (a) False (b) True
22. 22.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) a teaspoon (d) a magnet
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) time for colour to show (b) the length of the stem (c) the kind of flower
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the room it stands in is kept the same. (a) True (b) False
26. 26.🛟 Which of these sinks in water? (a) a feather (b) a cork (c) a pebble (d) a dry leaf
27. 27.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
28. 28.True or false: an open sheet of paper falls fast through the air. (a) False (b) True
29. 29.True or false: yeast is needed for the water cycle bowl. (a) False (b) True
30. 30.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals like colour (c) the stem is hot (d) petals lose water to air
31. 31.🔍 Which is the odd one out? (a) a misty bathroom mirror (b) ice becoming water (c) snow turning to water (d) butter going runny
32. 32.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
33. 33.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “whether the card stays”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a flower stem (b) a plastic ruler (c) a strip of cloth (d) a piece of chalk
36. 36.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
37. 37.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) False (b) True
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a magnet (d) yeast
39. 39.💧 What happens to water vapour when it touches the cold cling film? (a) it turns to salt (b) it disappears (c) it turns to smoke (d) it turns to drops
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) a spoon (c) water with food colour (d) honey

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