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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 939 · 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: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
  2. 2.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  3. 3.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  4. 4.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
  6. 6.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  7. 7.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a clock or timer (c) honey (d) a balloon
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a clock or timer (d) a mirror
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
  10. 10.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it spread in the water (d) it became air
  11. 11.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  12. 12.True or false: sugar in warm water dissolves faster. (a) False (b) True
  13. 13.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) small pebbles (d) table salt
  14. 14.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
  15. 15.🧺 Which of these is needed for the dissolving test? (a) honey (b) sugar (c) a magnet (d) a balloon
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
  17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
  18. 18.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  19. 19.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) a comb (c) cotton wool (d) honey
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
  21. 21.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
  22. 22.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  23. 23.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) cooking oil (d) table salt
  24. 24.🥄 Which of these dissolves in water? (a) cooking oil (b) baking soda (c) sand (d) chalk powder
  25. 25.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) cooking oil (d) chalk powder
  26. 26.True or false: food colour does not dissolve in water. (a) True (b) False
  27. 27.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it turns blue (d) it dissolves
  28. 28.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  29. 29.True or false: sugar dissolves in water. (a) False (b) True
  30. 30.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  31. 31.True or false: powdered sugar dissolves faster. (a) True (b) False
  32. 32.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) sugar (c) a clock or timer (d) a teaspoon
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a comb (c) cold water (d) a teaspoon
  35. 35.True or false: sawdust dissolves in water. (a) False (b) True
  36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
  37. 37.True or false: sugar in warm water dissolves slower. (a) False (b) True
  38. 38.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the amount of water (c) the water temperature
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) a balloon (d) cold water

Answer key

  1. powdered sugar
  2. needed
  3. needed
  4. does not dissolve
  5. we change it
  6. needed
  7. a clock or timer
  8. a mirror
  9. False
  10. it spread in the water
  11. not needed
  12. True
  13. table salt
  14. a solution
  15. sugar
  16. False
  17. faster
  18. dissolves in water
  19. a teaspoon
  20. we keep it the same
  21. look for leftover grains
  22. slower
  23. cooking oil
  24. baking soda
  25. baking soda
  26. False
  27. it settles at the bottom
  28. faster
  29. True
  30. does not dissolve
  31. True
  32. dissolves in water
  33. honey
  34. a comb
  35. False
  36. we keep it the same
  37. False
  38. False
  39. the amount of water
  40. a balloon

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