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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 953 · 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.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the stirring (c) the water temperature (d) time to dissolve
  3. 3.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  4. 4.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) slower (d) the same
  5. 5.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
  6. 6.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) two clear glasses (c) sugar (d) a balloon
  7. 7.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  8. 8.⚖️ 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 stirring
  9. 9.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  10. 10.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  11. 11.True or false: a big sugar cube dissolves slower. (a) False (b) True
  12. 12.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
  13. 13.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  14. 14.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
  15. 15.🔍 Which is the odd one out? (a) sand (b) baking soda (c) glucose powder (d) sugar
  16. 16.⚖️ 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) False (b) True
  17. 17.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  18. 18.🔮 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
  19. 19.🔮 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
  20. 20.True or false: baking soda does not dissolve in water. (a) True (b) False
  21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a balloon (c) a clock or timer (d) a teaspoon
  22. 22.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  23. 23.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  24. 24.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) sand (d) baking soda
  25. 25.True or false: food colour dissolves in water. (a) False (b) True
  26. 26.True or false: powdered sugar dissolves slower. (a) True (b) False
  27. 27.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
  28. 28.True or false: sand does not dissolve in water. (a) False (b) True
  29. 29.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  30. 30.True or false: sugar in warm water dissolves faster. (a) False (b) True
  31. 31.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  32. 32.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sand (d) sugar
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) sugar (d) food colour
  35. 35.True or false: glucose powder dissolves in water. (a) False (b) True
  36. 36.True or false: sand dissolves in water. (a) True (b) False
  37. 37.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  38. 38.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it

Answer key

  1. look for leftover grains
  2. time to dissolve
  3. not needed
  4. faster
  5. it spread in the water
  6. a balloon
  7. slower
  8. the stirring
  9. needed
  10. does not dissolve
  11. True
  12. False
  13. needed
  14. sugar in warm water
  15. sand
  16. True
  17. does not dissolve
  18. powdered sugar
  19. some stays undissolved
  20. False
  21. a balloon
  22. needed
  23. True
  24. sand
  25. True
  26. False
  27. it settles at the bottom
  28. True
  29. does not dissolve
  30. True
  31. does not dissolve
  32. sugar
  33. False
  34. sawdust
  35. True
  36. False
  37. not needed
  38. faster
  39. False
  40. we keep it the same

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