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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 779 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a clock or timer (d) a balloon
  2. 2.True or false: small pebbles does not dissolve in water. (a) True (b) False
  3. 3.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  4. 4.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  5. 5.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a teaspoon (c) cotton wool (d) a mirror
  6. 6.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) a comb (d) a clock or timer
  7. 7.🥄 Which of these dissolves in water? (a) baking soda (b) cooking oil (c) sand (d) sawdust
  8. 8.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
  9. 9.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it became air (d) it vanished for ever
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) honey (c) warm water (d) a teaspoon
  11. 11.🔍 Which is the odd one out? (a) chalk powder (b) food colour (c) cooking oil (d) small pebbles
  12. 12.🔍 Which is the odd one out? (a) food colour (b) table salt (c) baking soda (d) sawdust
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
  14. 14.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  15. 15.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) baking soda (d) small pebbles
  17. 17.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  18. 18.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) honey (c) warm water (d) a teaspoon
  19. 19.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  20. 20.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) two clear glasses (c) honey (d) a mirror
  21. 21.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  22. 22.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) chalk powder (d) table salt
  23. 23.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) cold water is wet (d) warm water is thicker
  24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
  25. 25.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it turns blue (d) it floats up
  26. 26.True or false: food colour does not dissolve in water. (a) True (b) False
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cotton wool (c) warm water (d) sugar
  28. 28.True or false: sugar in icy water dissolves faster. (a) True (b) False
  29. 29.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
  31. 31.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) sugar (d) sand
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
  33. 33.True or false: chalk powder dissolves in water. (a) False (b) True
  34. 34.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
  35. 35.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  36. 36.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) time to dissolve (c) the water temperature (d) the kind of sugar
  38. 38.True or false: sawdust dissolves in water. (a) True (b) False
  39. 39.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  40. 40.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower

Answer key

  1. a balloon
  2. True
  3. does not dissolve
  4. faster
  5. a teaspoon
  6. a comb
  7. baking soda
  8. sugar in warm water
  9. it spread in the water
  10. honey
  11. food colour
  12. sawdust
  13. False
  14. needed
  15. True
  16. small pebbles
  17. does not dissolve
  18. honey
  19. True
  20. two clear glasses
  21. True
  22. chalk powder
  23. particles move faster
  24. False
  25. it settles at the bottom
  26. False
  27. cotton wool
  28. False
  29. look for leftover grains
  30. we keep it the same
  31. sugar
  32. we keep it the same
  33. False
  34. a grown-up
  35. slower
  36. dissolves in water
  37. time to dissolve
  38. False
  39. needed
  40. faster

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