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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 622 · 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 a balloon for the dissolving test? (a) needed (b) not needed
  2. 2.True or false: sugar in icy water dissolves faster. (a) False (b) True
  3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) honey (d) cold water
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the stirring (c) time to dissolve (d) the kind of sugar
  5. 5.True or false: small pebbles does not dissolve in water. (a) False (b) True
  6. 6.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) two clear glasses (c) a teaspoon (d) a clock or timer
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a magnet (d) warm water
  8. 8.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  9. 9.True or false: sugar stirred well dissolves slower. (a) False (b) True
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
  11. 11.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) cotton wool (c) a comb (d) a mirror
  12. 12.True or false: food colour dissolves in water. (a) False (b) True
  13. 13.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
  14. 14.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
  15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a mirror (c) warm water (d) two clear glasses
  16. 16.🛟 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
  17. 17.True or false: a big sugar cube dissolves slower. (a) True (b) False
  18. 18.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  19. 19.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) powdered sugar (d) sugar in warm water
  20. 20.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the water turns solid (d) the sugar turns to salt
  21. 21.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) table salt (d) cooking oil
  22. 22.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  23. 23.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  24. 24.True or false: powdered sugar dissolves slower. (a) True (b) False
  25. 25.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  26. 26.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
  27. 27.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar left unstirred (d) sugar stirred well
  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 is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) a clock or timer (d) a balloon
  30. 30.True or false: sugar does not dissolve in water. (a) False (b) True
  31. 31.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the stirring (c) the amount of sugar (d) the water temperature
  33. 33.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  35. 35.True or false: sugar in warm water dissolves faster. (a) True (b) False
  36. 36.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  37. 37.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  38. 38.True or false: baking soda dissolves in water. (a) False (b) True
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
  40. 40.True or false: sand does not dissolve in water. (a) True (b) False

Answer key

  1. not needed
  2. False
  3. honey
  4. time to dissolve
  5. True
  6. a mirror
  7. a magnet
  8. False
  9. False
  10. True
  11. a clock or timer
  12. True
  13. a grown-up
  14. faster
  15. a mirror
  16. look for leftover grains
  17. True
  18. faster
  19. sugar in icy water
  20. some stays undissolved
  21. cooking oil
  22. dissolves in water
  23. not needed
  24. False
  25. slower
  26. it settles at the bottom
  27. sugar left unstirred
  28. we keep it the same
  29. a balloon
  30. False
  31. does not dissolve
  32. the water temperature
  33. does not dissolve
  34. False
  35. True
  36. needed
  37. False
  38. True
  39. we measure it
  40. True

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