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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 182 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) the same (d) slower
  2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a mirror (d) warm water
  3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a comb (d) a clock or timer
  4. 4.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  5. 5.True or false: sugar stirred well dissolves slower. (a) True (b) False
  6. 6.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in warm water (d) sugar in icy water
  7. 7.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.🥄 Which of these does not dissolve in water? (a) table salt (b) chalk powder (c) food colour (d) sugar
  9. 9.True or false: warm water is needed for the dissolving test. (a) True (b) False
  10. 10.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) a magnet (d) sugar
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the kind of sugar
  12. 12.True or false: food colour dissolves in water. (a) True (b) False
  13. 13.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
  15. 15.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  16. 16.True or false: honey is needed for the dissolving test. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) table salt (b) small pebbles (c) glucose powder (d) baking soda
  18. 18.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  19. 19.True or false: cooking oil dissolves in water. (a) False (b) True
  20. 20.⚖️ 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
  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) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
  22. 22.True or false: sugar in warm water dissolves slower. (a) False (b) True
  23. 23.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  24. 24.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) a big sugar cube (d) sugar in warm water
  25. 25.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) cold water is wet (d) warm water is thicker
  26. 26.🥄 Which of these dissolves in water? (a) cooking oil (b) table salt (c) small pebbles (d) sawdust
  27. 27.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
  28. 28.⚖️ 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 change it (c) we keep it the same
  29. 29.True or false: cold water is needed for the dissolving test. (a) True (b) False
  30. 30.True or false: sand dissolves in water. (a) True (b) False
  31. 31.True or false: sawdust dissolves in water. (a) True (b) False
  32. 32.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  33. 33.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  34. 34.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
  35. 35.True or false: chalk powder dissolves in water. (a) True (b) False
  36. 36.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  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 keep it the same (b) we measure it (c) we change it
  39. 39.⚖️ 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
  40. 40.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower

Answer key

  1. faster
  2. a mirror
  3. a comb
  4. False
  5. False
  6. sugar in warm water
  7. dissolves in water
  8. chalk powder
  9. True
  10. a magnet
  11. the kind of sugar
  12. True
  13. does not dissolve
  14. True
  15. not needed
  16. False
  17. small pebbles
  18. needed
  19. False
  20. True
  21. some stays undissolved
  22. False
  23. faster
  24. a big sugar cube
  25. particles move faster
  26. table salt
  27. sugar stirred well
  28. we keep it the same
  29. True
  30. False
  31. False
  32. dissolves in water
  33. faster
  34. a grown-up
  35. False
  36. powdered sugar
  37. False
  38. we change it
  39. the amount of water
  40. slower

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