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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 948 · 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 left unstirred dissolves faster. (a) False (b) True
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the kind of sugar
  3. 3.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
  5. 5.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) poke it with a finger (d) smell it closely
  6. 6.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
  7. 7.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) table salt (d) chalk powder
  8. 8.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
  9. 9.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  10. 10.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) food colour (d) baking soda
  11. 11.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) honey (c) a comb (d) a magnet
  12. 12.⚖️ 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) time to dissolve (c) the kind of sugar (d) the water temperature
  13. 13.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) food colour (b) sugar (c) baking soda (d) sand
  16. 16.⚖️ 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 amount of sugar (d) the water temperature
  17. 17.🔍 Which is the odd one out? (a) sawdust (b) sand (c) glucose powder (d) cooking oil
  18. 18.True or false: chalk powder does not dissolve in water. (a) True (b) False
  19. 19.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
  20. 20.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a magnet (c) warm water (d) cold water
  21. 21.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) all of it dissolves (d) the sugar turns to salt
  22. 22.True or false: cooking oil dissolves in water. (a) True (b) False
  23. 23.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) food colour (d) chalk powder
  24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) a clock or timer (c) two clear glasses (d) sugar
  25. 25.True or false: sugar does not dissolve in water. (a) True (b) False
  26. 26.🥄 Which of these does not dissolve in water? (a) sand (b) food colour (c) table salt (d) baking soda
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a magnet (d) cold water
  28. 28.⚖️ 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
  29. 29.True or false: a comb is needed for the dissolving test. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) sugar (b) food colour (c) table salt (d) cooking oil
  31. 31.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  32. 32.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) honey (d) two clear glasses
  33. 33.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  34. 34.True or false: cooking oil does not dissolve in water. (a) True (b) False
  35. 35.True or false: glucose powder does not dissolve in water. (a) False (b) True
  36. 36.🥄 Which of these does not dissolve in water? (a) cooking oil (b) sugar (c) glucose powder (d) table salt
  37. 37.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  38. 38.True or false: sugar in warm water dissolves faster. (a) False (b) True
  39. 39.True or false: cold water is needed for the dissolving test. (a) False (b) True
  40. 40.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. False
  2. the kind of sugar
  3. sugar left unstirred
  4. False
  5. look for leftover grains
  6. powdered sugar
  7. table salt
  8. sugar in warm water
  9. not needed
  10. sawdust
  11. two clear glasses
  12. the water temperature
  13. True
  14. False
  15. sand
  16. time to dissolve
  17. glucose powder
  18. True
  19. a grown-up
  20. a magnet
  21. some stays undissolved
  22. False
  23. chalk powder
  24. a balloon
  25. False
  26. sand
  27. a magnet
  28. we keep it the same
  29. False
  30. cooking oil
  31. True
  32. honey
  33. faster
  34. True
  35. False
  36. cooking oil
  37. not needed
  38. True
  39. True
  40. does not dissolve

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