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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 267 · 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) cold water (b) sugar (c) a teaspoon (d) a mirror
  2. 2.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  3. 3.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  4. 4.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it became air (d) it sank as sand
  5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
  6. 6.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a teaspoon (c) warm water (d) cold water
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the water temperature (d) the amount of sugar
  8. 8.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
  9. 9.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  10. 10.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
  11. 11.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) table salt (d) sand
  12. 12.True or false: a big sugar cube dissolves faster. (a) False (b) True
  13. 13.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  14. 14.True or false: chalk powder does not dissolve in water. (a) False (b) True
  15. 15.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) particles move faster (d) warm water is thicker
  16. 16.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
  17. 17.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  18. 18.⚖️ 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) True (b) False
  19. 19.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
  20. 20.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  21. 21.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) honey (c) a mirror (d) a comb
  22. 22.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  23. 23.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar stirred well (d) sugar in warm water
  24. 24.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  25. 25.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) glucose powder (d) sugar
  26. 26.True or false: powdered sugar dissolves slower. (a) True (b) False
  27. 27.⚖️ 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 measure it (c) we keep it the same
  28. 28.True or false: a big sugar cube dissolves slower. (a) False (b) True
  29. 29.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
  30. 30.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) warm water (d) a comb
  31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
  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.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  34. 34.True or false: sugar stirred well dissolves faster. (a) True (b) False
  35. 35.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  36. 36.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) sugar (d) cooking oil
  38. 38.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) a mirror (d) cold water
  39. 39.True or false: chalk powder dissolves in water. (a) False (b) True
  40. 40.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. a mirror
  2. needed
  3. dissolves in water
  4. it spread in the water
  5. False
  6. a mirror
  7. the water temperature
  8. a grown-up
  9. needed
  10. sugar in warm water
  11. table salt
  12. False
  13. not needed
  14. True
  15. particles move faster
  16. powdered sugar
  17. needed
  18. True
  19. sugar in icy water
  20. needed
  21. a clock or timer
  22. True
  23. sugar left unstirred
  24. slower
  25. sawdust
  26. False
  27. we keep it the same
  28. True
  29. a big sugar cube
  30. a comb
  31. faster
  32. False
  33. needed
  34. True
  35. False
  36. True
  37. cooking oil
  38. cold water
  39. False
  40. dissolves in water

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