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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 981 · 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 a magnet for the dissolving test? (a) not needed (b) needed
  2. 2.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) glucose powder (d) sawdust
  3. 3.True or false: baking soda does not dissolve in water. (a) True (b) False
  4. 4.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
  5. 5.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it dissolves (d) it floats up
  6. 6.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  8. 8.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
  9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
  10. 10.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  11. 11.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
  12. 12.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) a magnet (d) two clear glasses
  13. 13.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
  16. 16.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) sugar (d) small pebbles
  17. 17.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  18. 18.True or false: sugar in icy water dissolves faster. (a) False (b) True
  19. 19.⚖️ 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 keep it the same (c) we measure it
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) warm water (d) a mirror
  21. 21.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) table salt (d) small pebbles
  22. 22.⚖️ 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 stirring (c) the amount of water (d) the amount of sugar
  23. 23.True or false: sugar stirred well dissolves faster. (a) True (b) False
  24. 24.True or false: table salt does not dissolve in water. (a) False (b) True
  25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
  26. 26.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  27. 27.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a comb (d) a teaspoon
  29. 29.True or false: a big sugar cube dissolves faster. (a) True (b) False
  30. 30.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  31. 31.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) two clear glasses (d) a balloon
  32. 32.⚖️ 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
  33. 33.True or false: sugar stirred well dissolves slower. (a) True (b) False
  34. 34.True or false: honey is needed for the dissolving test. (a) True (b) False
  35. 35.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  36. 36.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  37. 37.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) cold water (d) a balloon
  38. 38.True or false: cooking oil does not dissolve in water. (a) True (b) False
  39. 39.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  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. not needed
  2. glucose powder
  3. False
  4. powdered sugar
  5. it settles at the bottom
  6. not needed
  7. True
  8. some stays undissolved
  9. powdered sugar
  10. does not dissolve
  11. faster
  12. a magnet
  13. needed
  14. we keep it the same
  15. True
  16. small pebbles
  17. does not dissolve
  18. False
  19. we keep it the same
  20. a mirror
  21. small pebbles
  22. time to dissolve
  23. True
  24. False
  25. we change it
  26. faster
  27. dissolves in water
  28. a comb
  29. False
  30. False
  31. a balloon
  32. we keep it the same
  33. False
  34. False
  35. slower
  36. not needed
  37. cold water
  38. True
  39. faster
  40. True

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