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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 23 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
  2. 2.🔍 Which is the odd one out? (a) food colour (b) sand (c) baking soda (d) glucose powder
  3. 3.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  4. 4.🧺 Which of these is needed for the dissolving test? (a) cold water (b) cotton wool (c) honey (d) a magnet
  5. 5.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
  7. 7.True or false: cold water is needed for the dissolving test. (a) True (b) False
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a clock or timer (d) honey
  9. 9.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  10. 10.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a magnet (c) two clear glasses (d) sugar
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
  12. 12.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  13. 13.True or false: a big sugar cube dissolves slower. (a) True (b) False
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a magnet (c) sugar (d) a teaspoon
  15. 15.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  16. 16.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) two clear glasses (c) cold water (d) warm water
  17. 17.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) cold water (d) a clock or timer
  18. 18.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  19. 19.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) a clock or timer (d) a balloon
  20. 20.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
  21. 21.True or false: powdered sugar dissolves faster. (a) True (b) False
  22. 22.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it
  23. 23.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar stirred well (d) sugar in warm water
  24. 24.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  25. 25.True or false: sugar does not dissolve in water. (a) False (b) True
  26. 26.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it floats up (d) it turns blue
  27. 27.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) two clear glasses (d) a mirror
  28. 28.🔍 Which is the odd one out? (a) cooking oil (b) glucose powder (c) sawdust (d) sand
  29. 29.True or false: sugar dissolves in water. (a) True (b) False
  30. 30.True or false: sugar in warm water dissolves slower. (a) True (b) False
  31. 31.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
  32. 32.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  33. 33.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🔍 Which is the odd one out? (a) chalk powder (b) small pebbles (c) table salt (d) sawdust
  35. 35.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  36. 36.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) chalk powder (d) glucose powder
  37. 37.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  38. 38.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the stirring (c) time to dissolve (d) the amount of sugar

Answer key

  1. we change it
  2. sand
  3. False
  4. cold water
  5. needed
  6. True
  7. True
  8. honey
  9. dissolves in water
  10. a magnet
  11. we keep it the same
  12. needed
  13. True
  14. a magnet
  15. needed
  16. a balloon
  17. honey
  18. False
  19. a clock or timer
  20. powdered sugar
  21. True
  22. look for leftover grains
  23. sugar left unstirred
  24. does not dissolve
  25. False
  26. it settles at the bottom
  27. two clear glasses
  28. glucose powder
  29. True
  30. False
  31. a big sugar cube
  32. not needed
  33. dissolves in water
  34. table salt
  35. does not dissolve
  36. glucose powder
  37. True
  38. faster
  39. faster
  40. time to dissolve

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