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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 462 · 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) two clear glasses (d) honey
  2. 2.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) food colour (d) sand
  3. 3.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
  4. 4.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sugar (d) cooking oil
  5. 5.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  6. 6.True or false: chalk powder does not dissolve in water. (a) False (b) True
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the kind of sugar (c) time to dissolve (d) the water temperature
  8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  10. 10.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  11. 11.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  12. 12.True or false: sawdust dissolves in water. (a) True (b) False
  13. 13.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  14. 14.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  15. 15.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) a magnet (d) honey
  16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a teaspoon (c) sugar (d) cotton wool
  17. 17.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
  18. 18.⚖️ 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
  19. 19.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
  21. 21.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar in icy water
  22. 22.🥄 Which of these does not dissolve in water? (a) sawdust (b) sugar (c) baking soda (d) glucose powder
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
  24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a mirror (c) warm water (d) a teaspoon
  25. 25.⚖️ 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
  26. 26.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
  27. 27.True or false: food colour dissolves in water. (a) True (b) False
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) warm water (c) cold water (d) a clock or timer
  29. 29.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  30. 30.🥄 Which of these dissolves in water? (a) food colour (b) small pebbles (c) sawdust (d) cooking oil
  31. 31.🥄 Which of these does not dissolve in water? (a) chalk powder (b) food colour (c) baking soda (d) glucose powder
  32. 32.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) cold water (d) a mirror
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
  36. 36.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  37. 37.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) cooking oil (d) table salt
  38. 38.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  39. 39.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) baking soda (b) sand (c) chalk powder (d) cooking oil

Answer key

  1. honey
  2. sand
  3. it settles at the bottom
  4. sugar
  5. faster
  6. True
  7. time to dissolve
  8. faster
  9. we keep it the same
  10. not needed
  11. slower
  12. False
  13. True
  14. needed
  15. sugar
  16. cotton wool
  17. powdered sugar
  18. we keep it the same
  19. True
  20. we measure it
  21. sugar in icy water
  22. sawdust
  23. the kind of sugar
  24. a mirror
  25. True
  26. a solution
  27. True
  28. a comb
  29. slower
  30. food colour
  31. chalk powder
  32. does not dissolve
  33. does not dissolve
  34. cold water
  35. False
  36. dissolves in water
  37. cooking oil
  38. needed
  39. False
  40. baking soda

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