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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 977 · 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 warm water for the dissolving test? (a) not needed (b) needed
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) time to dissolve (c) the amount of sugar (d) the amount of water
  3. 3.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  4. 4.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  5. 5.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
  6. 6.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) sugar (d) cooking oil
  7. 7.⚖️ 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) True (b) False
  8. 8.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  9. 9.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  10. 10.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a teaspoon (c) a clock or timer (d) cold water
  11. 11.True or false: sawdust dissolves in water. (a) False (b) True
  12. 12.🛟 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
  13. 13.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) two clear glasses (d) sugar
  15. 15.⚖️ 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
  16. 16.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
  17. 17.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) honey (d) warm water
  18. 18.⚖️ 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 stirring (c) the water temperature
  19. 19.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) baking soda (d) table salt
  20. 20.⚖️ 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
  21. 21.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  22. 22.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it dissolves (d) it settles at the bottom
  23. 23.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  24. 24.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  25. 25.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cold water (c) honey (d) a balloon
  26. 26.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
  27. 27.⚖️ 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 change it (c) we keep it the same
  28. 28.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  29. 29.True or false: powdered sugar dissolves faster. (a) False (b) True
  30. 30.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
  31. 31.True or false: sugar stirred well dissolves slower. (a) False (b) True
  32. 32.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) cotton wool (c) a comb (d) honey
  33. 33.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) sawdust (d) sugar
  35. 35.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  36. 36.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
  37. 37.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  38. 38.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  39. 39.True or false: sugar stirred well dissolves faster. (a) False (b) True
  40. 40.True or false: table salt does not dissolve in water. (a) True (b) False

Answer key

  1. needed
  2. time to dissolve
  3. slower
  4. does not dissolve
  5. a solution
  6. sugar
  7. True
  8. does not dissolve
  9. False
  10. a comb
  11. False
  12. look for leftover grains
  13. not needed
  14. honey
  15. we keep it the same
  16. sugar stirred well
  17. warm water
  18. the stirring
  19. chalk powder
  20. we change it
  21. False
  22. it settles at the bottom
  23. faster
  24. dissolves in water
  25. cold water
  26. a grown-up
  27. we keep it the same
  28. False
  29. True
  30. some stays undissolved
  31. False
  32. a clock or timer
  33. does not dissolve
  34. sawdust
  35. True
  36. faster
  37. False
  38. not needed
  39. True
  40. False

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