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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 915 · 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 is the odd one out? (a) food colour (b) sand (c) sugar (d) glucose powder
  2. 2.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  3. 3.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar in icy water (d) powdered sugar
  4. 4.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) neither of them (d) the sugar cube
  5. 5.True or false: cold water is needed for the dissolving test. (a) False (b) True
  6. 6.True or false: powdered sugar dissolves faster. (a) False (b) True
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) cold water (d) a comb
  9. 9.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  10. 10.True or false: sugar does not dissolve in water. (a) False (b) True
  11. 11.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  12. 12.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  13. 13.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) sugar (b) food colour (c) small pebbles (d) glucose powder
  17. 17.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  18. 18.True or false: powdered sugar dissolves slower. (a) False (b) True
  19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
  20. 20.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) sugar (d) small pebbles
  21. 21.True or false: sawdust does not dissolve in water. (a) False (b) True
  22. 22.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) cold water is wet (d) sugar likes the dark
  23. 23.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  24. 24.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a magnet (d) a rainbow
  25. 25.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a clock or timer (c) a magnet (d) honey
  26. 26.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  27. 27.True or false: honey is not needed for the dissolving test. (a) False (b) True
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) sugar (c) cold water (d) a clock or timer
  29. 29.True or false: sugar stirred well dissolves slower. (a) False (b) True
  30. 30.True or false: cooking oil dissolves in water. (a) False (b) True
  31. 31.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  32. 32.True or false: food colour dissolves in water. (a) False (b) True
  33. 33.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
  34. 34.⚖️ 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 keep it the same (c) we change it
  35. 35.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  36. 36.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) cotton wool (d) warm water
  37. 37.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  38. 38.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it settles at the bottom (d) it dissolves
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of sugar (c) the water temperature (d) the amount of water
  40. 40.True or false: sugar in warm water dissolves faster. (a) True (b) False

Answer key

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

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