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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 317 · 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.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  2. 2.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  3. 3.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) not at all (d) slower
  4. 4.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
  5. 5.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  6. 6.🛟 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
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) cold water (d) a mirror
  8. 8.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  9. 9.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
  10. 10.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it settles at the bottom (d) it dissolves
  11. 11.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar left unstirred (d) sugar in icy water
  12. 12.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) sugar (d) cooking oil
  13. 13.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
  15. 15.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) two clear glasses (c) sugar (d) a teaspoon
  16. 16.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
  17. 17.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) warm water (d) cotton wool
  18. 18.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) cotton wool (d) cold water
  19. 19.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  20. 20.⚖️ 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 measure it (c) we change it
  21. 21.🧺 Which of these is not needed for the dissolving test? (a) honey (b) two clear glasses (c) warm water (d) sugar
  22. 22.True or false: honey is not needed for the dissolving test. (a) True (b) False
  23. 23.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  24. 24.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) glucose powder (d) table salt
  26. 26.🔍 Which is the odd one out? (a) cooking oil (b) chalk powder (c) sand (d) glucose powder
  27. 27.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  28. 28.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a balloon (c) cold water (d) warm water
  29. 29.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  30. 30.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  31. 31.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) table salt (d) chalk powder
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
  33. 33.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  34. 34.True or false: sugar in icy water dissolves slower. (a) True (b) False
  35. 35.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  36. 36.True or false: sugar in warm water dissolves slower. (a) True (b) False
  37. 37.True or false: sugar stirred well dissolves slower. (a) False (b) True
  38. 38.True or false: sand dissolves in water. (a) False (b) True
  39. 39.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar in icy water (d) sugar left unstirred
  40. 40.True or false: sugar in warm water dissolves faster. (a) False (b) True

Answer key

  1. needed
  2. True
  3. faster
  4. let the water evaporate
  5. slower
  6. a grown-up
  7. a mirror
  8. does not dissolve
  9. some stays undissolved
  10. it settles at the bottom
  11. sugar in warm water
  12. cooking oil
  13. needed
  14. True
  15. a mirror
  16. sugar left unstirred
  17. warm water
  18. cotton wool
  19. faster
  20. we keep it the same
  21. honey
  22. True
  23. needed
  24. dissolves in water
  25. sawdust
  26. glucose powder
  27. does not dissolve
  28. a balloon
  29. False
  30. faster
  31. table salt
  32. we measure it
  33. False
  34. True
  35. False
  36. False
  37. False
  38. False
  39. sugar stirred well
  40. True

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