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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 451 · 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: sugar left unstirred dissolves faster. (a) True (b) False
  2. 2.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  5. 5.⚖️ 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) time to dissolve (c) the stirring (d) the amount of water
  6. 6.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
  7. 7.⚖️ 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
  8. 8.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  9. 9.⚖️ 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
  10. 10.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  11. 11.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar in warm water (d) sugar stirred well
  12. 12.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) food colour (d) sand
  13. 13.⚖️ 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 water (c) time to dissolve
  14. 14.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  15. 15.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
  16. 16.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  17. 17.⚖️ 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 keep it the same (c) we measure it
  18. 18.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) warm water (d) a magnet
  19. 19.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) cold water (c) a teaspoon (d) sugar
  21. 21.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  22. 22.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  23. 23.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  25. 25.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
  26. 26.True or false: sugar is needed for the dissolving test. (a) True (b) False
  27. 27.True or false: a comb is not needed for the dissolving test. (a) False (b) True
  28. 28.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) chalk powder (d) glucose powder
  29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) honey (c) a teaspoon (d) two clear glasses
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
  31. 31.True or false: chalk powder does not dissolve in water. (a) True (b) False
  32. 32.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  33. 33.True or false: powdered sugar dissolves faster. (a) True (b) False
  34. 34.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  35. 35.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) warm water (c) a teaspoon (d) cold water
  36. 36.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it settles at the bottom (d) it floats up
  37. 37.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) chalk powder (d) sugar
  38. 38.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) a big sugar cube (d) sugar in icy water
  39. 39.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  40. 40.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. False
  2. dissolves in water
  3. faster
  4. we keep it the same
  5. time to dissolve
  6. a grown-up
  7. we keep it the same
  8. True
  9. we change it
  10. True
  11. a big sugar cube
  12. sand
  13. the amount of water
  14. dissolves in water
  15. True
  16. slower
  17. we measure it
  18. warm water
  19. slower
  20. a comb
  21. False
  22. not needed
  23. dissolves in water
  24. True
  25. some stays undissolved
  26. True
  27. True
  28. glucose powder
  29. honey
  30. True
  31. True
  32. not needed
  33. True
  34. faster
  35. a mirror
  36. it settles at the bottom
  37. sugar
  38. sugar stirred well
  39. needed
  40. dissolves in water

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