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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 256 · 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.True or false: sawdust does not dissolve in water. (a) True (b) False
  2. 2.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  3. 3.True or false: cold water is needed for the dissolving test. (a) True (b) False
  4. 4.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) both the same (d) neither of them
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) sugar (d) a mirror
  6. 6.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) sand (d) glucose powder
  7. 7.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) sawdust (d) table salt
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) two clear glasses (d) a comb
  9. 9.True or false: a big sugar cube dissolves faster. (a) False (b) True
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
  11. 11.⚖️ 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
  12. 12.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
  13. 13.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
  14. 14.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  15. 15.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) sugar in icy water (d) a big sugar cube
  16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) honey (d) cold water
  17. 17.⚖️ 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
  18. 18.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) chalk powder (d) sugar
  19. 19.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
  21. 21.True or false: sugar in warm water dissolves slower. (a) True (b) False
  22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) cold water (d) sugar
  23. 23.🥄 Which of these dissolves in water? (a) small pebbles (b) table salt (c) chalk powder (d) sawdust
  24. 24.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  25. 25.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  26. 26.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  27. 27.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  28. 28.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it dissolves (d) it turns blue
  29. 29.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  30. 30.⚖️ 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
  31. 31.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a magnet (c) cold water (d) a comb
  32. 32.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) a magnet (d) a clock or timer
  33. 33.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  34. 34.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
  35. 35.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  36. 36.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) baking soda (d) cooking oil
  37. 37.⚖️ 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) False (b) True
  38. 38.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) warm water (c) sugar (d) a teaspoon
  39. 39.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
  40. 40.True or false: sugar stirred well dissolves faster. (a) True (b) False

Answer key

  1. True
  2. True
  3. True
  4. powdered sugar
  5. a mirror
  6. sand
  7. sawdust
  8. a comb
  9. False
  10. False
  11. True
  12. look for leftover grains
  13. a big sugar cube
  14. False
  15. sugar stirred well
  16. honey
  17. True
  18. chalk powder
  19. not needed
  20. the amount of water
  21. False
  22. cotton wool
  23. table salt
  24. needed
  25. False
  26. faster
  27. does not dissolve
  28. it settles at the bottom
  29. False
  30. we change it
  31. cold water
  32. a magnet
  33. False
  34. it spread in the water
  35. faster
  36. baking soda
  37. True
  38. a mirror
  39. sugar in icy water
  40. True

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