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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 676 · 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.

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  1. 1.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) warm water (c) two clear glasses (d) cold water
  2. 2.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
  3. 3.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
  5. 5.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) food colour (d) chalk powder
  6. 6.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) honey (d) warm water
  8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
  9. 9.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  10. 10.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) sand (d) cooking oil
  11. 11.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
  13. 13.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) small pebbles (d) glucose powder
  14. 14.True or false: cooking oil does not dissolve in water. (a) True (b) False
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
  16. 16.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) time to dissolve (c) the water temperature
  18. 18.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) baking soda (d) food colour
  19. 19.⚖️ 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
  20. 20.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  21. 21.True or false: powdered sugar dissolves slower. (a) False (b) True
  22. 22.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  23. 23.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  24. 24.🔍 Which is the odd one out? (a) sand (b) sawdust (c) cooking oil (d) sugar
  25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) warm water (c) two clear glasses (d) a teaspoon
  26. 26.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  27. 27.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) sugar (d) a mirror
  28. 28.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  29. 29.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
  30. 30.🥄 Which of these does not dissolve in water? (a) sand (b) table salt (c) glucose powder (d) baking soda
  31. 31.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
  34. 34.True or false: glucose powder dissolves in water. (a) False (b) True
  35. 35.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  36. 36.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) sawdust (d) glucose powder
  37. 37.⚖️ 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 amount of sugar (c) the amount of water (d) the stirring
  38. 38.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  39. 39.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) warm water (d) honey
  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. a balloon
  2. a grown-up
  3. faster
  4. False
  5. food colour
  6. does not dissolve
  7. honey
  8. powdered sugar
  9. faster
  10. baking soda
  11. not needed
  12. it settles at the bottom
  13. small pebbles
  14. True
  15. we keep it the same
  16. needed
  17. the amount of sugar
  18. cooking oil
  19. we keep it the same
  20. dissolves in water
  21. False
  22. needed
  23. slower
  24. sugar
  25. a comb
  26. True
  27. sugar
  28. False
  29. look for leftover grains
  30. sand
  31. False
  32. False
  33. we measure it
  34. True
  35. slower
  36. sawdust
  37. time to dissolve
  38. faster
  39. honey
  40. True

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