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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 475 · 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.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
  2. 2.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water
  3. 3.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
  4. 4.True or false: a big sugar cube dissolves slower. (a) True (b) False
  5. 5.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a magnet (d) warm water
  6. 6.True or false: chalk powder dissolves in water. (a) False (b) True
  7. 7.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a rainbow (d) a magnet
  8. 8.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it turns blue (d) it dissolves
  9. 9.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  10. 10.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) a mirror (d) a teaspoon
  11. 11.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
  12. 12.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a magnet (c) warm water (d) sugar
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of water (c) the amount of sugar (d) the kind of sugar
  14. 14.True or false: sugar dissolves in water. (a) False (b) True
  15. 15.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar in warm water (d) sugar stirred well
  16. 16.🥄 Which of these dissolves in water? (a) table salt (b) chalk powder (c) sawdust (d) cooking oil
  17. 17.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
  18. 18.True or false: small pebbles does not dissolve in water. (a) False (b) True
  19. 19.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  20. 20.🥄 Which of these does not dissolve in water? (a) chalk powder (b) sugar (c) table salt (d) baking soda
  21. 21.True or false: chalk powder does not dissolve in water. (a) False (b) True
  22. 22.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  23. 23.True or false: sand does not dissolve in water. (a) True (b) False
  24. 24.True or false: baking soda does not dissolve in water. (a) True (b) False
  25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) warm water (d) a comb
  26. 26.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) warm water is thicker (c) cold water is wet (d) sugar likes the dark
  27. 27.True or false: a comb is needed for the dissolving test. (a) True (b) False
  28. 28.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) powdered sugar
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
  30. 30.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  31. 31.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  32. 32.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  33. 33.True or false: glucose powder dissolves in water. (a) True (b) False
  34. 34.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) the sugar turns to salt (d) all of it dissolves
  35. 35.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a balloon (c) warm water (d) a clock or timer
  36. 36.True or false: honey is needed for the dissolving test. (a) False (b) True
  37. 37.⚖️ 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
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
  39. 39.True or false: table salt does not dissolve in water. (a) True (b) False
  40. 40.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed

Answer key

  1. a big sugar cube
  2. sugar in warm water
  3. a grown-up
  4. True
  5. warm water
  6. False
  7. a solution
  8. it settles at the bottom
  9. slower
  10. a mirror
  11. True
  12. a magnet
  13. time to dissolve
  14. True
  15. sugar left unstirred
  16. table salt
  17. True
  18. True
  19. slower
  20. chalk powder
  21. True
  22. does not dissolve
  23. True
  24. False
  25. a comb
  26. particles move faster
  27. False
  28. powdered sugar
  29. False
  30. needed
  31. needed
  32. faster
  33. True
  34. some stays undissolved
  35. a balloon
  36. False
  37. we keep it the same
  38. we change it
  39. False
  40. not needed

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