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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 999 · 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.⚖️ 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 water (b) the amount of sugar (c) the kind of sugar (d) the water temperature
  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 keep it the same (b) we measure it (c) we change it
  3. 3.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
  4. 4.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  5. 5.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
  6. 6.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a clock or timer (c) two clear glasses (d) warm water
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
  8. 8.True or false: honey is needed for the dissolving test. (a) True (b) False
  9. 9.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it vanished for ever (d) it sank as sand
  10. 10.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) all of it dissolves (d) the water turns solid
  12. 12.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred
  13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) warm water (c) a clock or timer (d) two clear glasses
  14. 14.True or false: food colour does not dissolve in water. (a) True (b) False
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
  16. 16.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  17. 17.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  18. 18.True or false: sugar stirred well dissolves faster. (a) False (b) True
  19. 19.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
  20. 20.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
  21. 21.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  22. 22.🥄 Which of these dissolves in water? (a) chalk powder (b) glucose powder (c) sand (d) sawdust
  23. 23.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) sand (d) baking soda
  24. 24.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  25. 25.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  26. 26.True or false: sawdust does not dissolve in water. (a) True (b) False
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
  28. 28.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  29. 29.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) baking soda (d) sugar
  30. 30.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  31. 31.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  32. 32.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
  33. 33.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) a magnet (d) cold water
  35. 35.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar in icy water (d) sugar stirred well
  36. 36.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) honey (d) two clear glasses
  37. 37.True or false: sugar stirred well dissolves slower. (a) True (b) False
  38. 38.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  39. 39.True or false: a comb is not needed for the dissolving test. (a) False (b) True
  40. 40.🥄 Which of these does not dissolve in water? (a) chalk powder (b) glucose powder (c) baking soda (d) sugar

Answer key

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

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