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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 482 · 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? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) warm water (d) two clear glasses
  3. 3.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
  4. 4.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) baking soda (d) sand
  5. 5.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the water temperature (d) the stirring
  7. 7.True or false: powdered sugar dissolves slower. (a) True (b) False
  8. 8.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  9. 9.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  10. 10.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
  11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  12. 12.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) time to dissolve (d) the amount of sugar
  14. 14.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) table salt (b) sugar (c) chalk powder (d) baking soda
  16. 16.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it dissolves (d) it turns blue
  17. 17.True or false: sugar stirred well dissolves faster. (a) False (b) True
  18. 18.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar stirred well (d) a big sugar cube
  19. 19.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) cold water (c) a clock or timer (d) two clear glasses
  20. 20.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) two clear glasses (c) warm water (d) a clock or timer
  21. 21.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  22. 22.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
  23. 23.🔍 Which is the odd one out? (a) sawdust (b) sand (c) baking soda (d) cooking oil
  24. 24.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the sugar turns to salt (d) the water turns solid
  26. 26.True or false: sugar in warm water dissolves slower. (a) True (b) False
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) warm water (d) cold water
  28. 28.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
  30. 30.True or false: sugar stirred well dissolves slower. (a) True (b) False
  31. 31.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
  33. 33.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  34. 34.True or false: sand dissolves in water. (a) True (b) False
  35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) cold water (c) sugar (d) two clear glasses
  36. 36.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) a balloon (d) two clear glasses
  38. 38.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) small pebbles (d) chalk powder
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a mirror (d) cold water
  40. 40.True or false: chalk powder does not dissolve in water. (a) True (b) False

Answer key

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

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