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Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 805 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.True or false: a piece of thermocol sinks in water. (a) True (b) False
  2. 2.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) sugar (d) cooking oil
  3. 3.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  4. 4.🔍 Which is the odd one out? (a) a crumpled paper ball (b) an open sheet of paper (c) a toy parachute (d) a fluff of cotton
  5. 5.💧 Which of these is melting? (a) sweat drying on skin (b) a misty bathroom mirror (c) butter going runny (d) water becoming ice
  6. 6.🌧️ The drops falling back into the bowl are like which part of the real water cycle? (a) sunshine (b) lightning (c) wind (d) rain
  7. 7.🔍 Which is the odd one out? (a) a paper helicopter (b) a glass marble (c) a stone (d) a steel spoon
  8. 8.True or false: a magnet is needed for the paper helicopter. (a) False (b) True
  9. 9.True or false: a mirror is not needed for the paper helicopter. (a) False (b) True
  10. 10.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
  11. 11.True or false: cooking oil is less dense than water. (a) False (b) True
  12. 12.🔮 Predict: a bowl of water is left uncovered in the hot sun all day. What happens? (a) the water increases (b) it turns to ice (c) some water evaporates (d) it turns to salt
  13. 13.🚁 Dropped from a raised hand, does a fluff of cotton fall slowly or fast? (a) falls fast (b) falls slowly
  14. 14.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
  15. 15.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
  16. 16.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  17. 17.🛟 Does a cork float or sink in water? (a) sinks (b) floats
  18. 18.🧺 Which of these is needed for the water cycle bowl? (a) a mirror (b) a magnet (c) turmeric powder (d) sunlight
  19. 19.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) a sink or a bucket (d) a magnet
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) warm water (d) a magnet
  21. 21.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  22. 22.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
  23. 23.⚖️ 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) time for colour to show (c) the amount of water (d) the kind of flower
  24. 24.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
  25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  26. 26.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
  27. 27.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  28. 28.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a grown-up (d) a pet
  29. 29.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) honey (d) two clear glasses
  30. 30.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so the Sun moves (c) so it gets hot (d) so it turns blue
  31. 31.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
  32. 32.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
  33. 33.True or false: a battery cell is needed for the density tower. (a) True (b) False
  34. 34.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  35. 35.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
  36. 36.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
  37. 37.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
  38. 38.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same three liquids”? (a) we change it (b) we measure it (c) we keep it the same
  39. 39.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a bicycle pump (c) a drinking straw (d) a fridge magnet
  40. 40.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a magnet (c) a clear glass of water (d) a sunny window

Answer key

  1. False
  2. sugar
  3. needed
  4. a crumpled paper ball
  5. butter going runny
  6. rain
  7. a paper helicopter
  8. False
  9. True
  10. needed
  11. True
  12. some water evaporates
  13. falls slowly
  14. False
  15. False
  16. slower
  17. floats
  18. sunlight
  19. a magnet
  20. a magnet
  21. needed
  22. not needed
  23. the length of the stem
  24. ice is less dense
  25. needed
  26. not needed
  27. False
  28. a grown-up
  29. two clear glasses
  30. so it does not fall
  31. sugar left unstirred
  32. True
  33. False
  34. needed
  35. faster
  36. needed
  37. True
  38. we keep it the same
  39. a fridge magnet
  40. a magnet

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