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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 20 · 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.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
  2. 2.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.⚖️ 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) True (b) False
  4. 4.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  5. 5.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
  7. 7.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  8. 8.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar stirred well (d) sugar in warm water
  9. 9.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  10. 10.True or false: sugar in icy water dissolves faster. (a) False (b) True
  11. 11.⚖️ 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
  12. 12.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) sand (d) glucose powder
  13. 13.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  14. 14.🥄 Which of these dissolves in water? (a) baking soda (b) sand (c) sawdust (d) cooking oil
  15. 15.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
  16. 16.True or false: sugar stirred well dissolves faster. (a) False (b) True
  17. 17.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) poke it with a finger (d) taste it
  18. 18.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  19. 19.True or false: sugar in warm water dissolves faster. (a) False (b) True
  20. 20.⚖️ 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 keep it the same (c) we measure it
  21. 21.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) a teaspoon (d) a comb
  22. 22.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) warm water (d) a magnet
  23. 23.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  24. 24.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) food colour (d) baking soda
  25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
  26. 26.True or false: small pebbles dissolves in water. (a) True (b) False
  27. 27.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  28. 28.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
  31. 31.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the kind of sugar (c) the water temperature (d) the stirring
  33. 33.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a mirror (c) cotton wool (d) a balloon
  34. 34.⚖️ 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 kind of sugar
  35. 35.True or false: a magnet is needed for the dissolving test. (a) False (b) True
  36. 36.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  37. 37.🔍 Which is the odd one out? (a) table salt (b) sugar (c) cooking oil (d) baking soda
  38. 38.True or false: a big sugar cube dissolves faster. (a) False (b) True
  39. 39.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) baking soda (d) sawdust
  40. 40.True or false: glucose powder does not dissolve in water. (a) False (b) True

Answer key

  1. a grown-up
  2. does not dissolve
  3. True
  4. not needed
  5. True
  6. False
  7. faster
  8. a big sugar cube
  9. slower
  10. False
  11. we keep it the same
  12. sand
  13. does not dissolve
  14. baking soda
  15. sugar in icy water
  16. True
  17. look for leftover grains
  18. dissolves in water
  19. True
  20. we change it
  21. a teaspoon
  22. warm water
  23. dissolves in water
  24. sand
  25. powdered sugar
  26. False
  27. True
  28. does not dissolve
  29. dissolves in water
  30. True
  31. False
  32. the water temperature
  33. cold water
  34. the kind of sugar
  35. False
  36. slower
  37. cooking oil
  38. False
  39. sawdust
  40. False

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