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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 112 · 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.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
  2. 2.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  4. 4.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  5. 5.True or false: a big sugar cube dissolves faster. (a) True (b) False
  6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
  7. 7.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
  8. 8.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
  11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
  12. 12.🔍 Which is the odd one out? (a) sugar (b) sand (c) baking soda (d) food colour
  13. 13.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water
  14. 14.🥄 Which of these dissolves in water? (a) chalk powder (b) baking soda (c) sand (d) cooking oil
  15. 15.⚖️ 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) the amount of water (c) time to dissolve
  16. 16.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) warm water (c) sugar (d) a clock or timer
  19. 19.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  20. 20.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  21. 21.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a mirror (c) a teaspoon (d) cold water
  23. 23.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) a comb (d) two clear glasses
  24. 24.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
  25. 25.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) cold water (c) two clear glasses (d) a teaspoon
  27. 27.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  28. 28.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) sand (d) glucose powder
  29. 29.🔍 Which is the odd one out? (a) chalk powder (b) sugar (c) table salt (d) baking soda
  30. 30.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cold water (c) a magnet (d) honey
  31. 31.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
  33. 33.True or false: cold water is needed for the dissolving test. (a) True (b) False
  34. 34.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) sugar (c) cotton wool (d) a comb
  35. 35.True or false: sawdust dissolves in water. (a) False (b) True
  36. 36.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) a clock or timer (d) a teaspoon
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) the water temperature (c) time to dissolve
  38. 38.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  39. 39.True or false: small pebbles does not dissolve in water. (a) False (b) True
  40. 40.True or false: a comb is needed for the dissolving test. (a) True (b) False

Answer key

  1. sugar in icy water
  2. does not dissolve
  3. needed
  4. does not dissolve
  5. False
  6. faster
  7. look for leftover grains
  8. True
  9. False
  10. we keep it the same
  11. powdered sugar
  12. sand
  13. sugar in warm water
  14. baking soda
  15. the amount of water
  16. needed
  17. False
  18. a magnet
  19. does not dissolve
  20. faster
  21. does not dissolve
  22. a mirror
  23. a comb
  24. a grown-up
  25. False
  26. cotton wool
  27. faster
  28. glucose powder
  29. chalk powder
  30. cold water
  31. True
  32. False
  33. True
  34. sugar
  35. False
  36. honey
  37. the amount of sugar
  38. False
  39. True
  40. False

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