Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 211 · 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.🔮 Predict: you add two more paper clips. How does it fall? (a) it floats up (b) faster (c) it stops in the air (d) slower
2. 2.True or false: sugar is needed for the dissolving test. (a) False (b) True
3. 3.🧺 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 battery cell (d) small test objects
4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) sugar (d) honey
5. 5.🥄 Which of these does not dissolve in water? (a) food colour (b) sand (c) table salt (d) sugar
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.True or false: an iron nail sinks in water. (a) False (b) True
8. 8.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) forward (d) straight down
9. 9.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) True (b) False
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
12. 12.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a strip of cloth (d) a steel spoon
13. 13.🧺 Do we need a mirror for the paper helicopter? (a) not needed (b) needed
14. 14.True or false: a magnet is needed for the density tower. (a) False (b) True
15. 15.True or false: a pebble is denser than water. (a) False (b) True
16. 16.🍯 Which of these is denser than water? (a) a cork (b) an ice cube (c) a pebble (d) cooking oil
17. 17.🔍 Which is the odd one out? (a) a piece of thermocol (b) a steel spoon (c) a ping-pong ball (d) an ice-cream stick
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same straw (c) the same tape (d) how big we blow it
19. 19.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) cooking oil (c) the spoon (d) honey
20. 20.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the way we turn it”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.🧺 Which of these is not needed for the water cycle bowl? (a) cling film (b) turmeric powder (c) sunlight (d) a small cup
22. 22.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) the stem turns blue (d) no colour change
23. 23.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the rowing boat (d) gas from the rocket
24. 24.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
25. 25.🧺 Do we need cling film for the water cycle bowl? (a) not needed (b) needed
26. 26.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the size of the bowl”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: sun or shade is the one thing we change. (a) True (b) False
28. 28.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a magnet (b) sunlight (c) ice cubes (d) cling film
29. 29.🌈 In VIBGYOR, what number colour is blue?
30. 30.🔍 Which is the odd one out? (a) very salty water (b) a pebble (c) a coin (d) a cork
31. 31.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) sunlight (b) a balloon (c) water (d) a small cup
32. 32.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) pour it on the floor (d) throw the glass
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
34. 34.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
35. 35.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) powdered sugar (d) sugar stirred well
36. 36.🧺 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) yeast
37. 37.🔮 A flat sheet and a crumpled ball of the same paper drop together. Which lands first? (a) the crumpled ball (b) a sheet of glass (c) neither of them (d) the flat sheet
38. 38.🥛 What holds the card up against the upside-down glass? (a) a magnet (b) the cold water (c) glue on the card (d) air pushing up
39. 39.🧺 Do we need a small cup for the water cycle bowl? (a) not needed (b) needed
40. 40.True or false: a magnet is needed for the water rainbow. (a) False (b) True

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