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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 101 · 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.

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  1. 1.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) honey (d) warm water
  3. 3.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it dissolves (d) it floats up
  4. 4.🛟 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
  5. 5.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  6. 6.⚖️ 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
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) a mirror (d) two clear glasses
  8. 8.True or false: powdered sugar dissolves faster. (a) False (b) True
  9. 9.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  10. 10.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) food colour (d) chalk powder
  11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  12. 12.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  13. 13.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it sank as sand (d) it became air
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) sugar (d) a magnet
  15. 15.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) a big sugar cube
  16. 16.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  17. 17.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
  18. 18.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar left unstirred (d) sugar in icy water
  19. 19.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  20. 20.🥄 Which of these does not dissolve in water? (a) chalk powder (b) sugar (c) food colour (d) table salt
  21. 21.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  22. 22.⚖️ 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) False (b) True
  23. 23.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) warm water (d) a magnet
  24. 24.🔍 Which is the odd one out? (a) sand (b) glucose powder (c) cooking oil (d) chalk powder
  25. 25.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) glucose powder (d) sand
  26. 26.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  27. 27.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
  29. 29.True or false: sawdust does not dissolve in water. (a) True (b) False
  30. 30.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) sugar (c) a teaspoon (d) a mirror
  31. 31.⚖️ 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
  32. 32.True or false: baking soda dissolves in water. (a) True (b) False
  33. 33.True or false: baking soda does not dissolve in water. (a) True (b) False
  34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the kind of sugar (c) the water temperature (d) the amount of sugar
  35. 35.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a comb (c) a teaspoon (d) a clock or timer
  36. 36.True or false: powdered sugar dissolves slower. (a) True (b) False
  37. 37.⚖️ 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
  38. 38.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  39. 39.True or false: sand does not dissolve in water. (a) False (b) True
  40. 40.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) not at all (d) the same

Answer key

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

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