Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 924 · 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.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
2. 2.💧 Which of these is condensation? (a) wet hair drying (b) wet clothes drying (c) a misty bathroom mirror (d) ice becoming water
3. 3.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
4. 4.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a magnet (c) a clock or timer (d) a mirror
5. 5.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) cling film (c) water (d) turmeric powder
6. 6.🚁 What does the paper helicopter do as it falls? (a) it flies upward (b) it spins round (c) it turns into a ball (d) it stays still in air
7. 7.🧺 Which of these is not needed for the water cycle bowl? (a) sunlight (b) a battery cell (c) a big bowl (d) ice cubes
8. 8.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) safety scissors (b) a pencil (c) a ruler (d) a balloon
9. 9.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) bright sunlight (d) a magnet
10. 10.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
11. 11.🧺 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) a results table
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is magnetic (c) it is heavier (d) it will not break
14. 14.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is kept the same. (a) False (b) True
15. 15.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a mirror (c) sugar (d) cold water
17. 17.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
18. 18.🔍 Which is the odd one out? (a) a feather (b) a glass marble (c) an open sheet of paper (d) a fluff of cotton
19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
20. 20.🔍 Which is the odd one out? (a) a puddle drying up (b) drops on a cold glass (c) a misty bathroom mirror (d) dew on morning grass
21. 21.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) a glass of water (c) a balloon (d) yeast
22. 22.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
23. 23.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) a ball of clay (d) a ping-pong ball
24. 24.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
25. 25.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
26. 26.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so it turns blue (c) so it gets hot (d) so the Sun moves
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🛟 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
29. 29.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
30. 30.True or false: yeast is needed for the water rainbow. (a) True (b) False
31. 31.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) a sheet of white paper (c) a sunny window (d) bright sunlight
32. 32.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) the order of pouring (b) how much of each liquid (c) the order of the layers (d) the same glass
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) turmeric powder (c) yeast (d) food colour
34. 34.True or false: a ping-pong ball is less dense than water. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) very salty water (b) a coin (c) a ping-pong ball (d) a glass marble
36. 36.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
39. 39.True or false: a cork sinks in water. (a) True (b) False
40. 40.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a magnet (c) a comb (d) honey

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