Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 977 · 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 paper helicopter. Which one is NOT needed? (a) a paper clip (b) safety scissors (c) a ruler (d) a battery cell
2. 2.🧺 Do we need a strip of paper for the paper helicopter? (a) not needed (b) needed
3. 3.🔍 Which is the odd one out? (a) a suction hook (b) a medicine dropper (c) a vacuum cleaner (d) a magnetic pin holder
4. 4.⚖️ 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 room it stands in (b) the amount of water (c) the length of the stem (d) the amount of colour
5. 5.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
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 shape of the clay (b) the tub of water (c) the amount of clay (d) whether it floats
7. 7.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
9. 9.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a balloon (c) yeast (d) a clear glass of water
10. 10.True or false: a balloon is needed for the card-on-a-glass trick. (a) False (b) True
11. 11.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) petals are magnetic (c) petals like colour (d) the stem is hot
12. 12.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) sunlight (b) a small cup (c) ice cubes (d) turmeric powder
13. 13.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a sunny window (d) turmeric powder
14. 14.🧺 Which of these is needed for the density tower? (a) a mirror (b) a balloon (c) a magnet (d) cooking oil
15. 15.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
16. 16.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
17. 17.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar in warm water (d) a big sugar cube
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the kind of sugar (c) time to dissolve (d) the amount of sugar
19. 19.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
20. 20.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a magnet (c) honey (d) a spoon
21. 21.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
23. 23.True or false: honey is needed for the density tower. (a) False (b) True
24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) yeast (c) honey (d) a spoon
25. 25.🔍 Which is the odd one out? (a) a strip of cloth (b) a rubber eraser (c) a piece of foil (d) a glass marble
26. 26.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🔍 Which is the odd one out? (a) a drinking straw (b) a bicycle pump (c) a fridge magnet (d) a vacuum cleaner
28. 28.True or false: warm water is not needed for the dissolving test. (a) False (b) True
29. 29.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) the glass gets hot (c) one mixed colour (d) bubbles of gas
30. 30.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
31. 31.⚖️ 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 measure it (c) we keep it the same
32. 32.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) look at it in a mirror (d) stare at the Sun
33. 33.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) gas from the rocket (d) the rowing boat
34. 34.📘 What is the push of air on a falling thing called? (a) floating (b) magnetism (c) dissolving (d) air resistance
35. 35.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “sun or shade”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) a balloon (d) bright sunlight
37. 37.⚖️ 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 what we measure. (a) True (b) False
38. 38.True or false: ice cubes is needed for the water cycle bowl. (a) False (b) True
39. 39.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a battery cell (c) a mirror (d) a stiff postcard
40. 40.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True

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