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Dissolving Experiment Worksheet: Warm and Cold Water

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

Answer key

  1. a magnet
  2. needed
  3. a grown-up
  4. a balloon
  5. sugar
  6. False
  7. we keep it the same
  8. False
  9. False
  10. some stays undissolved
  11. a mirror
  12. time to dissolve
  13. needed
  14. we keep it the same
  15. faster
  16. sugar in warm water
  17. slower
  18. False
  19. chalk powder
  20. particles move faster
  21. False
  22. a comb
  23. True
  24. True
  25. False
  26. slower
  27. faster
  28. warm water
  29. the water temperature
  30. True
  31. True
  32. needed
  33. a magnet
  34. does not dissolve
  35. cooking oil
  36. sugar
  37. honey
  38. the amount of sugar
  39. not needed
  40. the amount of water

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