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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 727 · 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 faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
  2. 2.True or false: powdered sugar dissolves faster. (a) True (b) False
  3. 3.True or false: cooking oil dissolves in water. (a) True (b) False
  4. 4.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) cold water (d) cotton wool
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) honey (c) a clock or timer (d) two clear glasses
  8. 8.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  9. 9.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  10. 10.🛟 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
  11. 11.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) a magnet (d) two clear glasses
  12. 12.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
  13. 13.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  14. 14.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  15. 15.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) sugar (d) small pebbles
  16. 16.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  17. 17.🥄 Which of these dissolves in water? (a) cooking oil (b) sugar (c) small pebbles (d) sand
  18. 18.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  19. 19.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  20. 20.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
  21. 21.⚖️ 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) the amount of sugar (d) time to dissolve
  22. 22.⚖️ 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 measure it (c) we change it
  23. 23.🔍 Which is the odd one out? (a) sand (b) food colour (c) cooking oil (d) chalk powder
  24. 24.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) honey (c) a teaspoon (d) two clear glasses
  25. 25.⚖️ 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 water temperature (d) the stirring
  26. 26.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  27. 27.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
  28. 28.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  29. 29.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) sugar (d) a balloon
  30. 30.True or false: a mirror is needed for the dissolving test. (a) False (b) True
  31. 31.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  32. 32.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
  33. 33.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  34. 34.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well
  35. 35.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
  36. 36.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) a clock or timer (d) a magnet
  37. 37.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
  38. 38.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False

Answer key

  1. sugar stirred well
  2. True
  3. False
  4. faster
  5. cotton wool
  6. we keep it the same
  7. honey
  8. slower
  9. does not dissolve
  10. a grown-up
  11. a magnet
  12. powdered sugar
  13. False
  14. dissolves in water
  15. small pebbles
  16. False
  17. sugar
  18. not needed
  19. faster
  20. faster
  21. time to dissolve
  22. we keep it the same
  23. food colour
  24. honey
  25. the water temperature
  26. faster
  27. particles move faster
  28. does not dissolve
  29. a balloon
  30. False
  31. not needed
  32. True
  33. not needed
  34. sugar left unstirred
  35. True
  36. a clock or timer
  37. sugar in icy water
  38. True
  39. False
  40. False

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