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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 555 · 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.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  2. 2.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  3. 3.True or false: powdered sugar dissolves slower. (a) True (b) False
  4. 4.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) sugar (c) two clear glasses (d) cold water
  5. 5.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
  6. 6.True or false: a mirror is not needed for the dissolving test. (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) time to dissolve (b) the amount of sugar (c) the kind of sugar (d) the stirring
  8. 8.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) honey (d) sugar
  9. 9.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) sugar (c) cold water (d) a teaspoon
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) warm water (d) a comb
  12. 12.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  13. 13.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) a big sugar cube (d) sugar in icy water
  14. 14.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
  15. 15.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) honey (c) a comb (d) cold water
  16. 16.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  17. 17.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  18. 18.🔍 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 became air (d) it spread in the water
  19. 19.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar in warm water
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) a balloon (d) cold water
  21. 21.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  22. 22.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
  23. 23.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  24. 24.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  25. 25.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  26. 26.True or false: cooking oil dissolves in water. (a) False (b) True
  27. 27.True or false: a magnet is needed for the dissolving test. (a) False (b) True
  28. 28.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  29. 29.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
  31. 31.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) add more water (d) stir it more
  32. 32.True or false: sugar is needed for the dissolving test. (a) False (b) True
  33. 33.True or false: sugar does not dissolve in water. (a) True (b) False
  34. 34.⚖️ 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
  35. 35.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) sugar (d) chalk powder
  36. 36.True or false: a big sugar cube dissolves slower. (a) True (b) False
  37. 37.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) table salt (d) sand
  38. 38.True or false: warm water is needed for the dissolving test. (a) False (b) True
  39. 39.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  40. 40.True or false: sugar in warm water dissolves slower. (a) True (b) False

Answer key

  1. dissolves in water
  2. False
  3. False
  4. cotton wool
  5. powdered sugar
  6. True
  7. time to dissolve
  8. sugar
  9. a magnet
  10. True
  11. a comb
  12. slower
  13. powdered sugar
  14. look for leftover grains
  15. cold water
  16. False
  17. faster
  18. it spread in the water
  19. sugar in warm water
  20. a balloon
  21. faster
  22. False
  23. True
  24. dissolves in water
  25. True
  26. False
  27. False
  28. slower
  29. not needed
  30. we change it
  31. let the water evaporate
  32. True
  33. False
  34. we keep it the same
  35. sugar
  36. True
  37. table salt
  38. True
  39. True
  40. False

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