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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 493 · 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 a balloon for the dissolving test? (a) needed (b) not needed
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  3. 3.True or false: glucose powder dissolves in water. (a) False (b) True
  4. 4.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
  6. 6.⚖️ 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 amount of water (c) time to dissolve (d) the amount of sugar
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
  8. 8.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
  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 water temperature (d) the stirring
  10. 10.True or false: sawdust dissolves in water. (a) True (b) False
  11. 11.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  12. 12.🔍 Which is the odd one out? (a) baking soda (b) sand (c) cooking oil (d) chalk powder
  13. 13.🔮 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
  14. 14.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) chalk powder (d) food colour
  15. 15.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air
  16. 16.🥄 Which of these dissolves in water? (a) food colour (b) chalk powder (c) sand (d) sawdust
  17. 17.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) sugar (d) cooking oil
  18. 18.⚖️ 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
  19. 19.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  20. 20.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  21. 21.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  22. 22.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
  23. 23.True or false: cooking oil does not dissolve in water. (a) True (b) False
  24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a comb (c) a clock or timer (d) cold water
  25. 25.🥄 Which of these dissolves in water? (a) baking soda (b) cooking oil (c) chalk powder (d) small pebbles
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a teaspoon (c) a comb (d) cold water
  27. 27.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
  28. 28.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  29. 29.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
  30. 30.True or false: warm water is needed for the dissolving test. (a) False (b) True
  31. 31.True or false: powdered sugar dissolves faster. (a) True (b) False
  32. 32.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) warm water (c) cotton wool (d) two clear glasses
  33. 33.True or false: sugar stirred well dissolves faster. (a) False (b) True
  34. 34.True or false: sugar dissolves in water. (a) False (b) True
  35. 35.True or false: sugar in warm water dissolves slower. (a) True (b) False
  36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
  37. 37.True or false: sugar in icy water dissolves faster. (a) False (b) True
  38. 38.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  39. 39.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) the water turns solid (d) some stays undissolved
  40. 40.True or false: a balloon is not needed for the dissolving test. (a) True (b) False

Answer key

  1. not needed
  2. we keep it the same
  3. True
  4. not needed
  5. faster
  6. time to dissolve
  7. we measure it
  8. a solution
  9. the water temperature
  10. False
  11. slower
  12. baking soda
  13. powdered sugar
  14. food colour
  15. it spread in the water
  16. food colour
  17. cooking oil
  18. False
  19. True
  20. does not dissolve
  21. slower
  22. sugar in icy water
  23. True
  24. a comb
  25. baking soda
  26. a comb
  27. sugar stirred well
  28. dissolves in water
  29. a grown-up
  30. True
  31. True
  32. cotton wool
  33. True
  34. True
  35. False
  36. we keep it the same
  37. False
  38. faster
  39. some stays undissolved
  40. True

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