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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 573 · 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.🔍 Which is the odd one out? (a) sand (b) table salt (c) sugar (d) glucose powder
  3. 3.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  4. 4.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a balloon (c) a magnet (d) cotton wool
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a mirror (d) a clock or timer
  6. 6.True or false: food colour dissolves in water. (a) False (b) True
  7. 7.⚖️ 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
  8. 8.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  9. 9.True or false: warm water is needed for the dissolving test. (a) False (b) True
  10. 10.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  11. 11.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  12. 12.⚖️ 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) the amount of sugar (c) time to dissolve
  13. 13.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar left unstirred (d) sugar in warm water
  14. 14.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
  15. 15.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it vanished for ever (d) it spread in the water
  16. 16.True or false: sugar in warm water dissolves slower. (a) True (b) False
  17. 17.True or false: baking soda dissolves in water. (a) False (b) True
  18. 18.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
  19. 19.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar in icy water
  20. 20.⚖️ 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 change it (c) we keep it the same
  21. 21.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
  23. 23.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  24. 24.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  25. 25.True or false: glucose powder dissolves in water. (a) True (b) False
  26. 26.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  27. 27.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  28. 28.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  29. 29.⚖️ 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
  30. 30.⚖️ 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
  31. 31.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  32. 32.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  33. 33.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a balloon (c) two clear glasses (d) warm water
  35. 35.True or false: chalk powder dissolves in water. (a) True (b) False
  36. 36.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  37. 37.True or false: powdered sugar dissolves slower. (a) True (b) False
  38. 38.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a magnet (c) a teaspoon (d) cold water
  39. 39.True or false: sugar dissolves in water. (a) False (b) True
  40. 40.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed

Answer key

  1. the amount of water
  2. sand
  3. needed
  4. two clear glasses
  5. a mirror
  6. True
  7. False
  8. dissolves in water
  9. True
  10. needed
  11. not needed
  12. the amount of sugar
  13. sugar left unstirred
  14. a grown-up
  15. it spread in the water
  16. False
  17. True
  18. powdered sugar
  19. sugar in icy water
  20. we keep it the same
  21. not needed
  22. False
  23. False
  24. False
  25. True
  26. dissolves in water
  27. True
  28. faster
  29. we measure it
  30. we change it
  31. dissolves in water
  32. slower
  33. does not dissolve
  34. a balloon
  35. False
  36. not needed
  37. False
  38. a magnet
  39. True
  40. needed

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