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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 930 · 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: baking soda does not dissolve in water. (a) True (b) False
  2. 2.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) small pebbles (d) food colour
  3. 3.⚖️ 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 sugar (c) the amount of water (d) time to dissolve
  4. 4.True or false: warm water is needed for the dissolving test. (a) True (b) False
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a comb (d) warm water
  6. 6.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  7. 7.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  8. 8.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the stirring (d) the water temperature
  10. 10.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  11. 11.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) warm water (c) a comb (d) two clear glasses
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  13. 13.⚖️ 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 amount of water (c) the water temperature
  14. 14.True or false: cooking oil does not dissolve in water. (a) True (b) False
  15. 15.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
  17. 17.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  19. 19.True or false: sugar in icy water dissolves faster. (a) False (b) True
  20. 20.True or false: sugar is needed for the dissolving test. (a) False (b) True
  21. 21.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  22. 22.🔮 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
  23. 23.True or false: cold water is needed for the dissolving test. (a) False (b) True
  24. 24.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) the same (d) slower
  25. 25.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) a balloon (d) two clear glasses
  26. 26.True or false: glucose powder does not dissolve in water. (a) False (b) True
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
  28. 28.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
  29. 29.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  30. 30.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) a balloon (d) two clear glasses
  31. 31.🥄 Which of these does not dissolve in water? (a) baking soda (b) sawdust (c) table salt (d) sugar
  32. 32.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
  33. 33.True or false: food colour dissolves in water. (a) False (b) True
  34. 34.True or false: sawdust dissolves in water. (a) False (b) True
  35. 35.True or false: cooking oil dissolves in water. (a) True (b) False
  36. 36.True or false: powdered sugar dissolves slower. (a) True (b) False
  37. 37.True or false: food colour does not dissolve in water. (a) True (b) False
  38. 38.⚖️ 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
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a magnet (d) a teaspoon
  40. 40.True or false: sugar left unstirred dissolves faster. (a) True (b) False

Answer key

  1. False
  2. small pebbles
  3. time to dissolve
  4. True
  5. a comb
  6. True
  7. faster
  8. faster
  9. the water temperature
  10. slower
  11. a comb
  12. False
  13. the amount of water
  14. True
  15. needed
  16. we change it
  17. powdered sugar
  18. we keep it the same
  19. False
  20. True
  21. not needed
  22. some stays undissolved
  23. True
  24. faster
  25. two clear glasses
  26. False
  27. we keep it the same
  28. look for leftover grains
  29. faster
  30. a balloon
  31. sawdust
  32. sugar left unstirred
  33. True
  34. False
  35. False
  36. False
  37. False
  38. we keep it the same
  39. a magnet
  40. False

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