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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 918 · 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.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  2. 2.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  3. 3.True or false: small pebbles does not dissolve in water. (a) False (b) True
  4. 4.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar left unstirred (d) powdered sugar
  5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
  8. 8.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
  9. 9.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  10. 10.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a comb (c) a clock or timer (d) a teaspoon
  11. 11.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
  12. 12.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a teaspoon (d) a mirror
  14. 14.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) food colour (d) baking soda
  15. 15.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  16. 16.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a magnet (c) a teaspoon (d) a balloon
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
  18. 18.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  19. 19.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
  20. 20.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a teaspoon (c) a clock or timer (d) cold water
  22. 22.True or false: food colour does not dissolve in water. (a) True (b) False
  23. 23.True or false: table salt does not dissolve in water. (a) False (b) True
  24. 24.True or false: sugar is needed for the dissolving test. (a) False (b) True
  25. 25.⚖️ 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) True (b) False
  26. 26.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  27. 27.🥄 Which of these dissolves in water? (a) sand (b) baking soda (c) sawdust (d) cooking oil
  28. 28.True or false: cooking oil dissolves in water. (a) True (b) False
  29. 29.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  31. 31.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
  32. 32.⚖️ 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 keep it the same (c) we measure it
  33. 33.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  34. 34.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  35. 35.True or false: glucose powder dissolves in water. (a) True (b) False
  36. 36.⚖️ 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
  37. 37.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
  38. 38.🥄 Which of these dissolves in water? (a) sand (b) food colour (c) chalk powder (d) cooking oil
  39. 39.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
  40. 40.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it floats up (d) it dissolves

Answer key

  1. faster
  2. slower
  3. True
  4. sugar left unstirred
  5. False
  6. True
  7. the kind of sugar
  8. look for leftover grains
  9. True
  10. a comb
  11. faster
  12. needed
  13. a mirror
  14. small pebbles
  15. True
  16. a teaspoon
  17. False
  18. needed
  19. a grown-up
  20. True
  21. a magnet
  22. False
  23. False
  24. True
  25. False
  26. not needed
  27. baking soda
  28. False
  29. sugar in warm water
  30. we keep it the same
  31. sugar stirred well
  32. we keep it the same
  33. faster
  34. False
  35. True
  36. the stirring
  37. False
  38. food colour
  39. powdered sugar
  40. it settles at the bottom

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