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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 504 · 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.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cold water (c) a comb (d) sugar
  2. 2.⚖️ 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
  3. 3.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  4. 4.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  5. 5.🥄 Which of these dissolves in water? (a) small pebbles (b) food colour (c) sand (d) cooking oil
  6. 6.⚖️ 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
  7. 7.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
  8. 8.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  9. 9.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a mirror (c) two clear glasses (d) a teaspoon
  10. 10.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
  11. 11.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  12. 12.🔮 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
  13. 13.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  14. 14.⚖️ 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
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
  16. 16.True or false: warm water is needed for the dissolving test. (a) False (b) True
  17. 17.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) warm water (d) a magnet
  18. 18.True or false: a magnet is needed for the dissolving test. (a) False (b) True
  19. 19.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  20. 20.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) honey (d) a comb
  21. 21.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) time to dissolve (c) the kind of sugar (d) the water temperature
  23. 23.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  24. 24.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a balloon (d) warm water
  26. 26.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) powdered sugar (d) sugar in icy water
  27. 27.True or false: cooking oil does not dissolve in water. (a) False (b) True
  28. 28.🔍 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
  29. 29.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  30. 30.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar in icy water (d) powdered sugar
  31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
  32. 32.🥄 Which of these does not dissolve in water? (a) sugar (b) chalk powder (c) table salt (d) glucose powder
  33. 33.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) warm water (d) sugar
  35. 35.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) sugar (d) small pebbles
  36. 36.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  37. 37.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  38. 38.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) table salt (d) sugar
  39. 39.True or false: sugar does not dissolve in water. (a) False (b) True
  40. 40.True or false: a mirror is not needed for the dissolving test. (a) True (b) False

Answer key

  1. a comb
  2. we change it
  3. False
  4. not needed
  5. food colour
  6. we measure it
  7. True
  8. does not dissolve
  9. a mirror
  10. look for leftover grains
  11. True
  12. powdered sugar
  13. needed
  14. True
  15. False
  16. True
  17. a magnet
  18. False
  19. faster
  20. sugar
  21. needed
  22. time to dissolve
  23. does not dissolve
  24. faster
  25. a balloon
  26. powdered sugar
  27. True
  28. it spread in the water
  29. False
  30. sugar in icy water
  31. faster
  32. chalk powder
  33. a grown-up
  34. honey
  35. small pebbles
  36. needed
  37. not needed
  38. cooking oil
  39. False
  40. True

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