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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 370 · 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.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) two clear glasses (c) cold water (d) a teaspoon
  3. 3.True or false: baking soda does not dissolve in water. (a) False (b) True
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) the water temperature (c) time to dissolve
  5. 5.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) a big sugar cube (d) sugar in warm water
  6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) warm water (d) a balloon
  7. 7.⚖️ 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 change it (c) we measure it
  8. 8.True or false: food colour dissolves in water. (a) False (b) True
  9. 9.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  10. 10.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a magnet (c) a balloon (d) a comb
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
  12. 12.⚖️ 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 water temperature (c) time to dissolve (d) the amount of sugar
  13. 13.True or false: chalk powder does not dissolve in water. (a) False (b) True
  14. 14.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) cold water (c) two clear glasses (d) a clock or timer
  15. 15.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  16. 16.True or false: powdered sugar dissolves slower. (a) True (b) False
  17. 17.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  18. 18.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) cotton wool (d) sugar
  19. 19.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) not at all (d) the same
  20. 20.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  21. 21.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
  22. 22.True or false: table salt does not dissolve in water. (a) True (b) False
  23. 23.⚖️ 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
  24. 24.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
  25. 25.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) chalk powder (d) sugar
  26. 26.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  27. 27.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a mirror (d) a teaspoon
  29. 29.True or false: a big sugar cube dissolves faster. (a) False (b) True
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) honey (d) two clear glasses
  31. 31.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
  32. 32.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) a clock or timer (d) honey
  33. 33.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) sawdust (d) table salt
  34. 34.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  35. 35.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  36. 36.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
  38. 38.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred
  39. 39.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  40. 40.True or false: powdered sugar dissolves faster. (a) True (b) False

Answer key

  1. False
  2. a comb
  3. False
  4. the stirring
  5. a big sugar cube
  6. a balloon
  7. we keep it the same
  8. True
  9. slower
  10. two clear glasses
  11. False
  12. time to dissolve
  13. True
  14. a comb
  15. slower
  16. False
  17. slower
  18. sugar
  19. faster
  20. dissolves in water
  21. a grown-up
  22. False
  23. False
  24. powdered sugar
  25. sugar
  26. True
  27. False
  28. a mirror
  29. False
  30. honey
  31. sugar left unstirred
  32. a clock or timer
  33. table salt
  34. not needed
  35. True
  36. needed
  37. we measure it
  38. sugar stirred well
  39. False
  40. True

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