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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 627 · 40 questions
TalentJR

What you do (Warm, stir, small): 1. An adult pours the same amount of warm water and cold water into two glasses. 2. Add one level teaspoon of sugar to each at the same time. 3. Stir each the same number of times and time how long the sugar takes to vanish. 4. Look, do not taste — then compare the two times.

NameDateTime takenScore ___ / 40
  1. 1.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a mirror (c) a clock or timer (d) a teaspoon
  2. 2.True or false: small pebbles dissolves in water. (a) True (b) False
  3. 3.True or false: cold water is needed for the dissolving test. (a) True (b) False
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  5. 5.True or false: powdered sugar dissolves slower. (a) False (b) True
  6. 6.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  7. 7.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) cold water (d) cotton wool
  8. 8.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) sugar (c) cold water (d) warm water
  9. 9.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) a big sugar cube (d) sugar in warm water
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
  11. 11.True or false: a comb is not needed for the dissolving test. (a) False (b) True
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the kind of sugar
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the stirring (c) the amount of sugar (d) the water temperature
  14. 14.🔍 Which is the odd one out? (a) table salt (b) small pebbles (c) chalk powder (d) sand
  15. 15.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  16. 16.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
  17. 17.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
  19. 19.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  20. 20.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
  22. 22.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a crystal (d) a rainbow
  23. 23.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  24. 24.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) the sugar cube (d) powdered sugar
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  28. 28.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  29. 29.True or false: glucose powder does not dissolve in water. (a) True (b) False
  30. 30.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  31. 31.True or false: sand dissolves in water. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) small pebbles (d) glucose powder
  33. 33.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) sawdust (d) small pebbles
  34. 34.True or false: chalk powder does not dissolve in water. (a) False (b) True
  35. 35.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  36. 36.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
  38. 38.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it spread in the water (d) it sank as sand
  39. 39.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  40. 40.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) a magnet (d) warm water

Answer key

  1. a mirror
  2. False
  3. True
  4. True
  5. False
  6. True
  7. cold water
  8. a balloon
  9. a big sugar cube
  10. we measure it
  11. True
  12. the kind of sugar
  13. the water temperature
  14. table salt
  15. faster
  16. sugar left unstirred
  17. False
  18. False
  19. faster
  20. faster
  21. we change it
  22. a solution
  23. needed
  24. dissolves in water
  25. powdered sugar
  26. we keep it the same
  27. False
  28. not needed
  29. False
  30. slower
  31. False
  32. glucose powder
  33. baking soda
  34. True
  35. does not dissolve
  36. not needed
  37. we keep it the same
  38. it spread in the water
  39. needed
  40. a magnet

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