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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 335 · 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 is needed for the dissolving test? (a) a clock or timer (b) a balloon (c) a magnet (d) a comb
  2. 2.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  3. 3.True or false: sawdust does not dissolve in water. (a) False (b) True
  4. 4.⚖️ 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
  5. 5.True or false: cooking oil does not dissolve in water. (a) False (b) True
  6. 6.⚖️ 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 keep it the same (c) we measure it
  7. 7.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the amount of water (c) time to dissolve (d) the amount of sugar
  9. 9.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) sugar (d) a mirror
  11. 11.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) cotton wool (d) warm water
  13. 13.True or false: sugar in warm water dissolves slower. (a) True (b) False
  14. 14.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
  15. 15.True or false: sand dissolves in water. (a) True (b) False
  16. 16.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  17. 17.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
  19. 19.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar stirred well
  20. 20.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) sawdust (d) sugar
  21. 21.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  22. 22.⚖️ 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
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
  24. 24.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) sawdust (d) sugar
  25. 25.True or false: sugar dissolves in water. (a) False (b) True
  26. 26.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sawdust (c) table salt (d) food colour
  27. 27.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  28. 28.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  29. 29.🥄 Which of these dissolves in water? (a) glucose powder (b) cooking oil (c) chalk powder (d) sawdust
  30. 30.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a comb (d) a magnet
  31. 31.True or false: powdered sugar dissolves slower. (a) True (b) False
  32. 32.True or false: small pebbles dissolves in water. (a) False (b) True
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  34. 34.⚖️ 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
  35. 35.🔍 Which is the odd one out? (a) food colour (b) sand (c) chalk powder (d) small pebbles
  36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
  37. 37.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  38. 38.True or false: food colour dissolves in water. (a) False (b) True
  39. 39.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it became air (d) it vanished for ever
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a comb (c) two clear glasses (d) sugar

Answer key

  1. a clock or timer
  2. faster
  3. True
  4. False
  5. True
  6. we keep it the same
  7. needed
  8. time to dissolve
  9. faster
  10. a mirror
  11. a grown-up
  12. cotton wool
  13. False
  14. powdered sugar
  15. False
  16. False
  17. sugar left unstirred
  18. False
  19. sugar stirred well
  20. sugar
  21. does not dissolve
  22. we change it
  23. False
  24. sugar
  25. True
  26. sawdust
  27. slower
  28. slower
  29. glucose powder
  30. a teaspoon
  31. False
  32. False
  33. True
  34. the kind of sugar
  35. food colour
  36. True
  37. False
  38. True
  39. it spread in the water
  40. a comb

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