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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 771 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
  2. 2.🥄 Which of these dissolves in water? (a) table salt (b) sand (c) cooking oil (d) small pebbles
  3. 3.True or false: honey is needed for the dissolving test. (a) True (b) False
  4. 4.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
  5. 5.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  6. 6.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) cotton wool (d) two clear glasses
  8. 8.True or false: a big sugar cube dissolves faster. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) small pebbles (d) sugar
  10. 10.⚖️ 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 keep it the same (c) we change it
  11. 11.True or false: cooking oil dissolves in water. (a) True (b) False
  12. 12.⚖️ 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
  13. 13.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
  14. 14.True or false: chalk powder dissolves in water. (a) False (b) True
  15. 15.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  16. 16.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
  17. 17.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a magnet (d) a teaspoon
  19. 19.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  20. 20.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a balloon (c) a magnet (d) a comb
  21. 21.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the water turns solid (d) the sugar turns to salt
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) time to dissolve (c) the amount of sugar (d) the amount of water
  24. 24.True or false: sugar in warm water dissolves slower. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) sugar (d) cooking oil
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) a clock or timer (d) a magnet
  27. 27.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  29. 29.🔍 Which is the odd one out? (a) food colour (b) sugar (c) small pebbles (d) baking soda
  30. 30.True or false: sugar dissolves in water. (a) False (b) True
  31. 31.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  32. 32.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  33. 33.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
  34. 34.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cold water (c) warm water (d) a balloon
  35. 35.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  36. 36.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  37. 37.⚖️ 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
  38. 38.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) cooking oil (d) glucose powder

Answer key

  1. we measure it
  2. table salt
  3. False
  4. a solution
  5. needed
  6. a big sugar cube
  7. cotton wool
  8. False
  9. sugar
  10. we keep it the same
  11. False
  12. we keep it the same
  13. sugar left unstirred
  14. False
  15. True
  16. a grown-up
  17. faster
  18. a magnet
  19. does not dissolve
  20. a clock or timer
  21. some stays undissolved
  22. False
  23. the water temperature
  24. False
  25. cooking oil
  26. a magnet
  27. dissolves in water
  28. slower
  29. small pebbles
  30. True
  31. faster
  32. True
  33. it spread in the water
  34. a balloon
  35. True
  36. not needed
  37. we change it
  38. does not dissolve
  39. True
  40. glucose powder

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