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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 778 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) a comb (d) two clear glasses
  2. 2.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  3. 3.True or false: chalk powder dissolves in water. (a) True (b) False
  4. 4.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
  5. 5.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of sugar (c) the amount of water (d) the water temperature
  7. 7.True or false: powdered sugar dissolves faster. (a) False (b) True
  8. 8.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a solution (d) a crystal
  9. 9.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar stirred well (d) sugar in warm water
  10. 10.True or false: table salt dissolves in water. (a) True (b) False
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
  12. 12.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) cotton wool (d) a teaspoon
  13. 13.True or false: baking soda does not dissolve in water. (a) True (b) False
  14. 14.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
  16. 16.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  17. 17.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  19. 19.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  20. 20.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  21. 21.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  22. 22.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) sand (d) food colour
  23. 23.True or false: honey is needed for the dissolving test. (a) True (b) False
  24. 24.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
  25. 25.True or false: cooking oil dissolves in water. (a) True (b) False
  26. 26.True or false: sugar in warm water dissolves faster. (a) False (b) True
  27. 27.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.🥄 Which of these does not dissolve in water? (a) sawdust (b) sugar (c) table salt (d) glucose powder
  29. 29.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  30. 30.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  31. 31.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) powdered sugar
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
  33. 33.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) sugar (d) a magnet
  34. 34.⚖️ 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
  35. 35.True or false: small pebbles dissolves in water. (a) False (b) True
  36. 36.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  37. 37.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a mirror (d) two clear glasses
  39. 39.⚖️ 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 measure it (c) we keep it the same
  40. 40.True or false: sugar dissolves in water. (a) True (b) False

Answer key

  1. a comb
  2. needed
  3. False
  4. a grown-up
  5. faster
  6. the water temperature
  7. True
  8. a solution
  9. sugar left unstirred
  10. True
  11. we change it
  12. cotton wool
  13. False
  14. sugar in warm water
  15. we measure it
  16. dissolves in water
  17. slower
  18. slower
  19. faster
  20. dissolves in water
  21. faster
  22. sand
  23. False
  24. faster
  25. False
  26. True
  27. does not dissolve
  28. sawdust
  29. needed
  30. needed
  31. powdered sugar
  32. False
  33. a magnet
  34. we keep it the same
  35. False
  36. True
  37. False
  38. a mirror
  39. we keep it the same
  40. True

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