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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 522 · 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.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a magnet (d) a crystal
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) the water temperature (c) time to dissolve
  3. 3.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) sand (d) table salt
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
  5. 5.🔍 Which is the odd one out? (a) sand (b) baking soda (c) cooking oil (d) chalk powder
  6. 6.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  7. 7.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) cold water (d) honey
  8. 8.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  9. 9.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) sugar (c) a comb (d) honey
  10. 10.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  11. 11.True or false: food colour dissolves in water. (a) True (b) False
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
  13. 13.True or false: baking soda dissolves in water. (a) False (b) True
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
  15. 15.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
  16. 16.True or false: sawdust does not dissolve in water. (a) True (b) False
  17. 17.⚖️ 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
  18. 18.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  19. 19.True or false: sand dissolves in water. (a) True (b) False
  20. 20.True or false: sugar in icy water dissolves faster. (a) False (b) True
  21. 21.True or false: cold water is needed for the dissolving test. (a) False (b) True
  22. 22.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
  23. 23.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  24. 24.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) honey (d) cold water
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  27. 27.True or false: sugar dissolves in water. (a) False (b) True
  28. 28.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) table salt (d) cooking oil
  29. 29.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  30. 30.True or false: sugar in icy water dissolves slower. (a) True (b) False
  31. 31.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
  32. 32.🔍 Which is the odd one out? (a) small pebbles (b) baking soda (c) table salt (d) sugar
  33. 33.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  34. 34.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) sawdust (d) baking soda
  35. 35.🥄 Which of these dissolves in water? (a) sugar (b) sawdust (c) small pebbles (d) cooking oil
  36. 36.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  37. 37.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) cold water (d) a balloon
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) cold water (d) a magnet
  40. 40.True or false: sugar stirred well dissolves faster. (a) True (b) False

Answer key

  1. a solution
  2. the stirring
  3. table salt
  4. we change it
  5. baking soda
  6. True
  7. cold water
  8. False
  9. sugar
  10. True
  11. True
  12. False
  13. True
  14. we keep it the same
  15. it spread in the water
  16. True
  17. the amount of water
  18. needed
  19. False
  20. False
  21. True
  22. a grown-up
  23. faster
  24. not needed
  25. honey
  26. True
  27. True
  28. table salt
  29. slower
  30. True
  31. look for leftover grains
  32. small pebbles
  33. not needed
  34. sawdust
  35. sugar
  36. not needed
  37. dissolves in water
  38. a balloon
  39. a magnet
  40. True

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