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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 229 · 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.⚖️ 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 amount of water
  2. 2.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
  3. 3.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
  4. 4.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  5. 5.⚖️ 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 change it (c) we measure it
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
  7. 7.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
  8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
  9. 9.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) keep it in a fridge (d) stir it more
  10. 10.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
  11. 11.True or false: a big sugar cube dissolves faster. (a) False (b) True
  12. 12.True or false: food colour dissolves in water. (a) False (b) True
  13. 13.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the water temperature (c) the stirring (d) the amount of water
  15. 15.True or false: cooking oil dissolves in water. (a) True (b) False
  16. 16.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  17. 17.True or false: sawdust dissolves in water. (a) False (b) True
  18. 18.True or false: a comb is needed for the dissolving test. (a) True (b) False
  19. 19.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
  21. 21.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) two clear glasses (d) honey
  22. 22.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  23. 23.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  24. 24.True or false: sand dissolves in water. (a) False (b) True
  25. 25.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  26. 26.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the amount of water (c) the stirring (d) time to dissolve
  28. 28.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  30. 30.True or false: a big sugar cube dissolves slower. (a) True (b) False
  31. 31.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a comb (c) warm water (d) a clock or timer
  32. 32.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  33. 33.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.True or false: honey is needed for the dissolving test. (a) True (b) False
  35. 35.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  36. 36.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  37. 37.True or false: chalk powder does not dissolve in water. (a) False (b) True
  38. 38.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) a big sugar cube (d) sugar left unstirred
  39. 39.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar stirred well (d) sugar in warm water
  40. 40.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) sand (d) cooking oil

Answer key

  1. the amount of water
  2. faster
  3. sugar in icy water
  4. faster
  5. we keep it the same
  6. we measure it
  7. particles move faster
  8. powdered sugar
  9. let the water evaporate
  10. it spread in the water
  11. False
  12. True
  13. False
  14. the water temperature
  15. False
  16. False
  17. False
  18. False
  19. False
  20. we change it
  21. honey
  22. slower
  23. dissolves in water
  24. False
  25. needed
  26. True
  27. time to dissolve
  28. does not dissolve
  29. needed
  30. True
  31. a comb
  32. dissolves in water
  33. dissolves in water
  34. False
  35. faster
  36. faster
  37. True
  38. sugar stirred well
  39. sugar left unstirred
  40. sugar

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