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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 538 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the stirring (c) the amount of water (d) time to dissolve
  3. 3.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
  4. 4.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) sawdust (d) chalk powder
  6. 6.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) table salt (d) food colour
  7. 7.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) food colour (d) small pebbles
  8. 8.True or false: small pebbles does not dissolve in water. (a) True (b) False
  9. 9.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it dissolves (d) it floats up
  10. 10.True or false: honey is needed for the dissolving test. (a) True (b) False
  11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a comb (d) warm water
  12. 12.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  13. 13.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  14. 14.True or false: chalk powder dissolves in water. (a) True (b) False
  15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) sugar (c) two clear glasses (d) cold water
  16. 16.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  17. 17.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) warm water is thicker (c) sugar likes the dark (d) cold water is wet
  18. 18.True or false: sugar does not dissolve in water. (a) True (b) False
  19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) sawdust (d) table salt
  21. 21.True or false: sugar in warm water dissolves faster. (a) True (b) False
  22. 22.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) sand (d) baking soda
  23. 23.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) two clear glasses (d) cotton wool
  24. 24.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) warm water (d) cotton wool
  25. 25.True or false: sugar in warm water dissolves slower. (a) True (b) False
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
  27. 27.True or false: sugar stirred well dissolves slower. (a) False (b) True
  28. 28.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  29. 29.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  30. 30.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it sank as sand (d) it vanished for ever
  31. 31.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) cold water (d) cotton wool
  32. 32.🧺 Which of these is needed for the dissolving test? (a) sugar (b) honey (c) a magnet (d) a comb
  33. 33.True or false: a mirror is needed for the dissolving test. (a) False (b) True
  34. 34.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  35. 35.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar in warm water
  36. 36.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
  37. 37.⚖️ 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
  38. 38.⚖️ 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 sugar (b) the stirring (c) the water temperature (d) time to dissolve
  39. 39.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) the water turns solid (c) all of it dissolves (d) some stays undissolved
  40. 40.True or false: honey is not needed for the dissolving test. (a) True (b) False

Answer key

  1. faster
  2. time to dissolve
  3. False
  4. True
  5. glucose powder
  6. small pebbles
  7. food colour
  8. True
  9. it settles at the bottom
  10. False
  11. a comb
  12. slower
  13. not needed
  14. False
  15. cotton wool
  16. dissolves in water
  17. particles move faster
  18. False
  19. False
  20. sawdust
  21. True
  22. sand
  23. two clear glasses
  24. warm water
  25. False
  26. False
  27. False
  28. False
  29. slower
  30. it spread in the water
  31. cotton wool
  32. sugar
  33. False
  34. needed
  35. sugar in warm water
  36. powdered sugar
  37. we keep it the same
  38. the water temperature
  39. some stays undissolved
  40. True

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