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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 340 · 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.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  2. 2.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) two clear glasses (c) a clock or timer (d) a teaspoon
  4. 4.🔍 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
  5. 5.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
  7. 7.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  8. 8.⚖️ 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) True (b) False
  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 measure it (c) we change it
  10. 10.⚖️ 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
  11. 11.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  12. 12.True or false: sugar stirred well dissolves faster. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) sugar (d) small pebbles
  14. 14.True or false: a big sugar cube dissolves faster. (a) False (b) True
  15. 15.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a mirror (c) cold water (d) a clock or timer
  16. 16.True or false: chalk powder does not dissolve in water. (a) True (b) False
  17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cotton wool (c) sugar (d) a teaspoon
  18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  19. 19.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
  20. 20.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) sand (d) small pebbles
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
  22. 22.True or false: baking soda does not dissolve in water. (a) True (b) False
  23. 23.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it sank as sand (d) it spread in the water
  24. 24.🧺 Which of these is needed for the dissolving test? (a) a comb (b) warm water (c) a mirror (d) a magnet
  25. 25.True or false: warm water is needed for the dissolving test. (a) True (b) False
  26. 26.🥄 Which of these does not dissolve in water? (a) baking soda (b) small pebbles (c) glucose powder (d) food colour
  27. 27.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  28. 28.True or false: baking soda dissolves in water. (a) True (b) False
  29. 29.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  30. 30.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  31. 31.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) food colour (d) sugar
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) time to dissolve (c) the water temperature
  33. 33.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) a teaspoon (d) sugar
  34. 34.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  35. 35.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  37. 37.⚖️ 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) the water temperature (c) time to dissolve
  38. 38.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  39. 39.True or false: small pebbles does not dissolve in water. (a) True (b) False
  40. 40.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a clock or timer (c) two clear glasses (d) a teaspoon

Answer key

  1. not needed
  2. dissolves in water
  3. a comb
  4. it settles at the bottom
  5. slower
  6. True
  7. faster
  8. False
  9. we keep it the same
  10. we keep it the same
  11. faster
  12. True
  13. sugar
  14. False
  15. a mirror
  16. True
  17. cotton wool
  18. slower
  19. a grown-up
  20. baking soda
  21. we keep it the same
  22. False
  23. it spread in the water
  24. warm water
  25. True
  26. small pebbles
  27. needed
  28. True
  29. not needed
  30. slower
  31. sand
  32. the amount of water
  33. cotton wool
  34. not needed
  35. needed
  36. needed
  37. the kind of sugar
  38. does not dissolve
  39. True
  40. a magnet

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