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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 861 · 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.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  2. 2.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  3. 3.True or false: honey is needed for the dissolving test. (a) True (b) False
  4. 4.True or false: chalk powder dissolves in water. (a) False (b) True
  5. 5.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  6. 6.True or false: sugar in warm water dissolves slower. (a) True (b) False
  7. 7.True or false: sugar stirred well dissolves faster. (a) False (b) True
  8. 8.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  9. 9.True or false: sugar left unstirred dissolves slower. (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 sugar is the one thing we change. (a) True (b) False
  11. 11.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  12. 12.⚖️ 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 amount of water (c) the amount of sugar (d) time to dissolve
  13. 13.⚖️ 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 measure it (c) we keep it the same
  14. 14.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) chalk powder (d) table salt
  15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) cold water (d) warm water
  16. 16.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) sugar (d) sand
  17. 17.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  18. 18.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  19. 19.⚖️ 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 water temperature (c) the kind of sugar
  20. 20.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  21. 21.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
  22. 22.⚖️ 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
  23. 23.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  24. 24.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) baking soda (d) sand
  25. 25.🛟 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
  26. 26.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  27. 27.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the amount of sugar (c) time to dissolve (d) the water temperature
  29. 29.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  30. 30.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
  31. 31.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  32. 32.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) honey (d) warm water
  34. 34.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
  35. 35.🔍 Which is the odd one out? (a) food colour (b) sand (c) sugar (d) table salt
  36. 36.⚖️ 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
  37. 37.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  38. 38.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a comb (c) two clear glasses (d) sugar
  40. 40.True or false: small pebbles does not dissolve in water. (a) False (b) True

Answer key

  1. needed
  2. True
  3. False
  4. False
  5. faster
  6. False
  7. True
  8. not needed
  9. True
  10. False
  11. needed
  12. time to dissolve
  13. we keep it the same
  14. table salt
  15. a magnet
  16. sugar
  17. dissolves in water
  18. does not dissolve
  19. the kind of sugar
  20. faster
  21. sugar in warm water
  22. True
  23. does not dissolve
  24. baking soda
  25. look for leftover grains
  26. needed
  27. faster
  28. the water temperature
  29. slower
  30. some stays undissolved
  31. needed
  32. does not dissolve
  33. warm water
  34. powdered sugar
  35. sand
  36. we keep it the same
  37. not needed
  38. slower
  39. a comb
  40. True

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