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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 9 · 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.

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

Answer key

  1. a magnet
  2. does not dissolve
  3. it settles at the bottom
  4. we measure it
  5. honey
  6. powdered sugar
  7. sugar left unstirred
  8. True
  9. sawdust
  10. cotton wool
  11. honey
  12. we keep it the same
  13. needed
  14. False
  15. time to dissolve
  16. the stirring
  17. True
  18. look for leftover grains
  19. False
  20. warm water
  21. a comb
  22. dissolves in water
  23. a grown-up
  24. sugar
  25. we keep it the same
  26. chalk powder
  27. a big sugar cube
  28. not needed
  29. a magnet
  30. False
  31. a teaspoon
  32. False
  33. needed
  34. we change it
  35. baking soda
  36. True
  37. False
  38. does not dissolve
  39. not needed
  40. True

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