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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 674 · 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: sugar is needed for the dissolving test. (a) True (b) False
  2. 2.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  3. 3.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  4. 4.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
  5. 5.🔮 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
  6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
  7. 7.True or false: sugar in warm water dissolves slower. (a) False (b) True
  8. 8.True or false: food colour does not dissolve in water. (a) True (b) False
  9. 9.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) cold water (d) honey
  10. 10.True or false: powdered sugar dissolves slower. (a) True (b) False
  11. 11.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
  12. 12.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  13. 13.True or false: honey is needed for the dissolving test. (a) True (b) False
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
  15. 15.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
  16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) sugar (d) a comb
  17. 17.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  18. 18.🔮 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 sugar turns to salt (c) the water turns solid (d) some stays undissolved
  19. 19.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) sand (d) chalk powder
  20. 20.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) a balloon (d) a clock or timer
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  22. 22.🔍 Which is the odd one out? (a) small pebbles (b) cooking oil (c) baking soda (d) chalk powder
  23. 23.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
  24. 24.True or false: sugar stirred well dissolves faster. (a) True (b) False
  25. 25.True or false: sugar does not dissolve in water. (a) False (b) True
  26. 26.⚖️ 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
  27. 27.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.True or false: powdered sugar dissolves faster. (a) False (b) True
  29. 29.⚖️ 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 change it (c) we measure it
  30. 30.⚖️ 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
  31. 31.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
  33. 33.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) sand (d) sugar
  34. 34.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) cold water (d) a magnet
  36. 36.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
  37. 37.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  38. 38.🥄 Which of these dissolves faster? (a) powdered sugar (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
  39. 39.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  40. 40.True or false: glucose powder does not dissolve in water. (a) False (b) True

Answer key

  1. True
  2. not needed
  3. needed
  4. it settles at the bottom
  5. powdered sugar
  6. faster
  7. False
  8. False
  9. honey
  10. False
  11. a grown-up
  12. slower
  13. False
  14. True
  15. look for leftover grains
  16. a comb
  17. dissolves in water
  18. some stays undissolved
  19. glucose powder
  20. a balloon
  21. we keep it the same
  22. baking soda
  23. sugar left unstirred
  24. True
  25. False
  26. True
  27. dissolves in water
  28. True
  29. we change it
  30. we keep it the same
  31. dissolves in water
  32. False
  33. sugar
  34. False
  35. a magnet
  36. particles move faster
  37. False
  38. powdered sugar
  39. True
  40. False

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