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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 64 · 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? True or false: the stirring is what we measure. (a) True (b) False
  2. 2.True or false: powdered sugar dissolves slower. (a) True (b) False
  3. 3.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
  4. 4.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) small pebbles (d) sugar
  5. 5.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a clock or timer (c) two clear glasses (d) cold water
  6. 6.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  7. 7.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) honey (d) sugar
  8. 8.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar in icy water (d) sugar stirred well
  9. 9.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a magnet (d) warm water
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of water (c) the kind of sugar (d) time to dissolve
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
  12. 12.True or false: sugar stirred well dissolves slower. (a) False (b) True
  13. 13.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  14. 14.🧺 Which of these is needed for the dissolving test? (a) honey (b) a teaspoon (c) a balloon (d) a comb
  15. 15.True or false: sugar dissolves in water. (a) False (b) True
  16. 16.⚖️ 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
  17. 17.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  18. 18.True or false: sugar does not dissolve in water. (a) True (b) False
  19. 19.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  20. 20.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  21. 21.True or false: sugar in icy water dissolves faster. (a) False (b) True
  22. 22.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
  24. 24.🛟 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
  25. 25.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) particles move faster (d) sugar likes the dark
  26. 26.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
  28. 28.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) chalk powder (d) cooking oil
  29. 29.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  30. 30.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) stir it more (d) let the water evaporate
  31. 31.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  32. 32.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) sugar (d) a mirror
  35. 35.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) sugar stirred well (d) powdered sugar
  36. 36.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
  37. 37.True or false: sand dissolves in water. (a) True (b) False
  38. 38.True or false: sugar in icy water dissolves slower. (a) False (b) True
  39. 39.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a magnet (c) sugar (d) two clear glasses

Answer key

  1. False
  2. False
  3. a solution
  4. sugar
  5. a comb
  6. dissolves in water
  7. sugar
  8. sugar in icy water
  9. warm water
  10. the water temperature
  11. we measure it
  12. False
  13. True
  14. a teaspoon
  15. True
  16. we change it
  17. False
  18. False
  19. does not dissolve
  20. False
  21. False
  22. False
  23. we keep it the same
  24. a grown-up
  25. particles move faster
  26. False
  27. we keep it the same
  28. table salt
  29. needed
  30. let the water evaporate
  31. not needed
  32. slower
  33. True
  34. a mirror
  35. a big sugar cube
  36. sugar left unstirred
  37. False
  38. True
  39. False
  40. a magnet

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