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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 139 · 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.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
  3. 3.🔮 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
  4. 4.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) some stays undissolved (d) the water turns solid
  5. 5.True or false: sugar stirred well dissolves slower. (a) False (b) True
  6. 6.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the water temperature (c) the amount of sugar (d) the stirring
  8. 8.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  9. 9.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar stirred well
  10. 10.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) slower (d) the same
  11. 11.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a balloon (c) a mirror (d) a magnet
  12. 12.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
  13. 13.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) sugar (d) sand
  14. 14.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar left unstirred
  15. 15.⚖️ 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
  16. 16.🥄 Which of these dissolves in water? (a) chalk powder (b) food colour (c) cooking oil (d) sawdust
  17. 17.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) food colour (d) table salt
  19. 19.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) cotton wool (d) sugar
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
  21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) two clear glasses (d) a magnet
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
  23. 23.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) powdered sugar (d) sugar in icy water
  24. 24.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  25. 25.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  26. 26.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
  27. 27.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  28. 28.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) a teaspoon (d) a magnet
  29. 29.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  30. 30.⚖️ 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
  31. 31.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) chalk powder (d) food colour
  32. 32.🔍 Which is the odd one out? (a) sand (b) table salt (c) cooking oil (d) chalk powder
  33. 33.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  34. 34.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  35. 35.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  36. 36.True or false: glucose powder does not dissolve in water. (a) True (b) False
  37. 37.True or false: sugar in warm water dissolves slower. (a) False (b) True
  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 change it (c) we keep it the same
  39. 39.True or false: sugar in warm water dissolves faster. (a) False (b) True
  40. 40.True or false: powdered sugar dissolves faster. (a) True (b) False

Answer key

  1. not needed
  2. we keep it the same
  3. powdered sugar
  4. some stays undissolved
  5. False
  6. dissolves in water
  7. the water temperature
  8. does not dissolve
  9. sugar stirred well
  10. faster
  11. warm water
  12. a grown-up
  13. sugar
  14. sugar left unstirred
  15. we keep it the same
  16. food colour
  17. True
  18. cooking oil
  19. sugar
  20. we keep it the same
  21. a magnet
  22. True
  23. powdered sugar
  24. needed
  25. False
  26. False
  27. True
  28. a teaspoon
  29. needed
  30. True
  31. chalk powder
  32. table salt
  33. False
  34. needed
  35. dissolves in water
  36. False
  37. False
  38. we change it
  39. True
  40. True

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