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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 147 · 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: cold water is needed for the dissolving test. (a) False (b) True
  2. 2.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) sawdust (d) table salt
  3. 3.True or false: chalk powder dissolves in water. (a) False (b) True
  4. 4.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  5. 5.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  6. 6.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) a mirror (d) warm water
  7. 7.🔍 Which is the odd one out? (a) sugar (b) sawdust (c) cooking oil (d) small pebbles
  8. 8.🔍 Which is the odd one out? (a) food colour (b) table salt (c) sugar (d) chalk powder
  9. 9.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
  10. 10.🧺 Which of these is needed for the dissolving test? (a) a comb (b) honey (c) a balloon (d) sugar
  11. 11.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it settles at the bottom (d) it floats up
  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 measure it (b) we keep it the same (c) we change it
  13. 13.⚖️ 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
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a balloon (c) a teaspoon (d) sugar
  15. 15.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  16. 16.True or false: sugar in warm water dissolves faster. (a) True (b) False
  17. 17.True or false: sugar in warm water dissolves slower. (a) False (b) True
  18. 18.True or false: cooking oil does not dissolve in water. (a) False (b) True
  19. 19.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
  20. 20.⚖️ 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
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  22. 22.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  23. 23.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
  24. 24.True or false: sugar does not dissolve in water. (a) False (b) True
  25. 25.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) warm water (d) a comb
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a mirror (c) sugar (d) warm water
  28. 28.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  29. 29.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  31. 31.True or false: a big sugar cube dissolves faster. (a) False (b) True
  32. 32.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) cotton wool (d) two clear glasses
  33. 33.True or false: sugar stirred well dissolves faster. (a) True (b) False
  34. 34.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  35. 35.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a solution (d) a magnet
  36. 36.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  37. 37.True or false: chalk powder does not dissolve in water. (a) False (b) True
  38. 38.⚖️ 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
  39. 39.True or false: sawdust does not dissolve in water. (a) True (b) False
  40. 40.⚖️ 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

Answer key

  1. True
  2. sawdust
  3. False
  4. faster
  5. does not dissolve
  6. a mirror
  7. sugar
  8. chalk powder
  9. look for leftover grains
  10. sugar
  11. it settles at the bottom
  12. we keep it the same
  13. we measure it
  14. a balloon
  15. faster
  16. True
  17. False
  18. True
  19. sugar in icy water
  20. we keep it the same
  21. we keep it the same
  22. not needed
  23. powdered sugar
  24. False
  25. a grown-up
  26. a comb
  27. a mirror
  28. not needed
  29. does not dissolve
  30. True
  31. False
  32. two clear glasses
  33. True
  34. False
  35. a solution
  36. dissolves in water
  37. True
  38. we change it
  39. True
  40. True

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