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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 223 · 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.True or false: sugar stirred well dissolves slower. (a) True (b) False
  2. 2.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a magnet (d) a rainbow
  3. 3.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) warm water is thicker (d) sugar likes the dark
  4. 4.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) sand (d) chalk powder
  5. 5.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  6. 6.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  7. 7.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.True or false: sugar in icy water dissolves faster. (a) False (b) True
  9. 9.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  10. 10.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  11. 11.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar in icy water
  12. 12.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  13. 13.🔮 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
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) warm water (d) a mirror
  15. 15.🔍 Which is the odd one out? (a) table salt (b) food colour (c) small pebbles (d) sugar
  16. 16.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) honey (c) two clear glasses (d) warm water
  17. 17.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) food colour (d) cooking oil
  18. 18.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) a balloon (d) warm water
  19. 19.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the amount of water (c) the water temperature (d) time to dissolve
  21. 21.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  22. 22.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) chalk powder (d) baking soda
  23. 23.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  24. 24.🥄 Which of these does not dissolve in water? (a) sugar (b) small pebbles (c) table salt (d) glucose powder
  25. 25.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) taste it (d) poke it with a finger
  26. 26.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it turns blue (d) it settles at the bottom
  27. 27.True or false: sugar stirred well dissolves faster. (a) False (b) True
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
  29. 29.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
  30. 30.True or false: a magnet is needed for the dissolving test. (a) False (b) True
  31. 31.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar in icy water (d) sugar left unstirred
  32. 32.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) chalk powder (d) table salt
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
  34. 34.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  35. 35.🥄 Which of these dissolves in water? (a) sawdust (b) glucose powder (c) cooking oil (d) chalk powder
  36. 36.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) cotton wool (d) sugar
  37. 37.True or false: baking soda does not dissolve in water. (a) True (b) False
  38. 38.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  39. 39.⚖️ 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
  40. 40.True or false: chalk powder dissolves in water. (a) True (b) False

Answer key

  1. False
  2. a solution
  3. particles move faster
  4. glucose powder
  5. does not dissolve
  6. True
  7. dissolves in water
  8. False
  9. faster
  10. needed
  11. sugar in icy water
  12. not needed
  13. some stays undissolved
  14. a mirror
  15. small pebbles
  16. honey
  17. cooking oil
  18. a balloon
  19. dissolves in water
  20. the water temperature
  21. needed
  22. chalk powder
  23. False
  24. small pebbles
  25. look for leftover grains
  26. it settles at the bottom
  27. True
  28. we keep it the same
  29. sugar stirred well
  30. False
  31. powdered sugar
  32. table salt
  33. False
  34. not needed
  35. glucose powder
  36. sugar
  37. False
  38. faster
  39. True
  40. False

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