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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 120 · 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: powdered sugar dissolves slower. (a) True (b) False
  2. 2.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
  3. 3.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) sugar (d) cooking oil
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
  5. 5.True or false: powdered sugar dissolves faster. (a) True (b) False
  6. 6.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  7. 7.🔮 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) some stays undissolved (c) the water turns solid (d) all of it dissolves
  8. 8.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  9. 9.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) cold water (d) cotton wool
  10. 10.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  11. 11.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) sugar (c) a clock or timer (d) two clear glasses
  12. 12.True or false: sand dissolves in water. (a) False (b) True
  13. 13.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
  14. 14.True or false: sand does not dissolve in water. (a) True (b) False
  15. 15.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the kind of sugar (c) the amount of sugar (d) the water temperature
  17. 17.⚖️ 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 keep it the same (c) we measure it
  18. 18.True or false: sugar in warm water dissolves slower. (a) False (b) True
  19. 19.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
  20. 20.True or false: cooking oil dissolves in water. (a) False (b) True
  21. 21.🧺 Which of these is needed for the dissolving test? (a) honey (b) cold water (c) a comb (d) cotton wool
  22. 22.🥄 Which of these dissolves in water? (a) chalk powder (b) baking soda (c) cooking oil (d) small pebbles
  23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) a comb (d) two clear glasses
  24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
  25. 25.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  26. 26.True or false: chalk powder does not dissolve in water. (a) True (b) False
  27. 27.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) both the same (d) powdered sugar
  28. 28.True or false: glucose powder dissolves in water. (a) False (b) True
  29. 29.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) a big sugar cube
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) cold water (c) sugar (d) two clear glasses
  31. 31.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a magnet (d) a solution
  32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) a mirror (d) cold water
  33. 33.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) cooking oil (d) sand
  34. 34.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  35. 35.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  36. 36.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) sawdust (d) table salt
  37. 37.True or false: a big sugar cube dissolves faster. (a) True (b) False
  38. 38.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  39. 39.⚖️ 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
  40. 40.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker

Answer key

  1. False
  2. faster
  3. cooking oil
  4. the amount of water
  5. True
  6. does not dissolve
  7. some stays undissolved
  8. needed
  9. cotton wool
  10. False
  11. a balloon
  12. False
  13. sugar left unstirred
  14. True
  15. dissolves in water
  16. time to dissolve
  17. we change it
  18. False
  19. a grown-up
  20. False
  21. cold water
  22. baking soda
  23. a comb
  24. False
  25. dissolves in water
  26. True
  27. powdered sugar
  28. True
  29. a big sugar cube
  30. cotton wool
  31. a solution
  32. a mirror
  33. sugar
  34. slower
  35. faster
  36. sawdust
  37. False
  38. needed
  39. we measure it
  40. particles move faster

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