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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 247 · 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.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
  2. 2.🔍 Which is the odd one out? (a) sugar (b) food colour (c) baking soda (d) sand
  3. 3.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
  4. 4.🧺 Which of these is needed for the dissolving test? (a) honey (b) two clear glasses (c) a balloon (d) a magnet
  5. 5.⚖️ 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
  6. 6.True or false: small pebbles does not dissolve in water. (a) True (b) False
  7. 7.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar left unstirred (d) powdered sugar
  8. 8.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  10. 10.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  11. 11.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  12. 12.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) table salt (b) sugar (c) small pebbles (d) food colour
  14. 14.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  15. 15.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  16. 16.True or false: sugar stirred well dissolves faster. (a) False (b) True
  17. 17.🥄 Which of these does not dissolve in water? (a) sugar (b) small pebbles (c) glucose powder (d) food colour
  18. 18.⚖️ 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
  19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the water temperature (c) time to dissolve (d) the kind of sugar
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) a balloon (d) a clock or timer
  21. 21.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
  22. 22.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) honey (d) sugar
  23. 23.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
  24. 24.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  25. 25.True or false: sugar in icy water dissolves slower. (a) False (b) True
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
  27. 27.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) cold water (c) a balloon (d) a magnet
  28. 28.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) a clock or timer (d) a comb
  30. 30.True or false: powdered sugar dissolves faster. (a) True (b) False
  31. 31.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  32. 32.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) sugar (d) chalk powder
  33. 33.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar in icy water
  34. 34.True or false: sand dissolves in water. (a) True (b) False
  35. 35.⚖️ 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
  36. 36.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  37. 37.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  38. 38.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it sank as sand (d) it became air
  39. 39.⚖️ 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
  40. 40.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True

Answer key

  1. sugar in warm water
  2. sand
  3. a grown-up
  4. two clear glasses
  5. True
  6. True
  7. sugar left unstirred
  8. needed
  9. we keep it the same
  10. slower
  11. dissolves in water
  12. True
  13. small pebbles
  14. not needed
  15. not needed
  16. True
  17. small pebbles
  18. we keep it the same
  19. time to dissolve
  20. a balloon
  21. sugar stirred well
  22. honey
  23. powdered sugar
  24. slower
  25. True
  26. False
  27. cold water
  28. does not dissolve
  29. a comb
  30. True
  31. needed
  32. chalk powder
  33. sugar in icy water
  34. False
  35. True
  36. slower
  37. True
  38. it spread in the water
  39. the stirring
  40. True

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