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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 167 · 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) warm water (b) two clear glasses (c) a mirror (d) a teaspoon
  2. 2.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  3. 3.True or false: small pebbles dissolves in water. (a) True (b) False
  4. 4.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) sugar (d) sand
  5. 5.🥄 Which of these dissolves in water? (a) baking soda (b) small pebbles (c) sawdust (d) cooking oil
  6. 6.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  7. 7.⚖️ 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
  8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
  9. 9.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a clock or timer (d) honey
  10. 10.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  11. 11.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  12. 12.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
  13. 13.⚖️ 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
  14. 14.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  15. 15.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
  17. 17.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
  18. 18.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) cooking oil (d) small pebbles
  19. 19.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) honey (c) a mirror (d) a comb
  20. 20.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  21. 21.🥄 Which of these does not dissolve in water? (a) sawdust (b) food colour (c) glucose powder (d) table salt
  22. 22.⚖️ 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
  23. 23.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) honey (d) a mirror
  24. 24.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
  25. 25.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) the water turns solid (c) all of it dissolves (d) some stays undissolved
  26. 26.True or false: sawdust dissolves in water. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) food colour (d) small pebbles
  28. 28.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  29. 29.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) a magnet (d) cold water
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) a clock or timer (d) warm water
  31. 31.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  32. 32.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  34. 34.True or false: sugar stirred well dissolves slower. (a) True (b) False
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the stirring (c) the water temperature
  36. 36.🔍 Which is the odd one out? (a) sand (b) table salt (c) glucose powder (d) baking soda
  37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) warm water (d) cotton wool
  38. 38.True or false: sand does not dissolve in water. (a) True (b) False
  39. 39.True or false: sugar in warm water dissolves slower. (a) True (b) False
  40. 40.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False

Answer key

  1. a mirror
  2. not needed
  3. False
  4. sand
  5. baking soda
  6. faster
  7. we keep it the same
  8. True
  9. a clock or timer
  10. False
  11. faster
  12. True
  13. we measure it
  14. True
  15. needed
  16. True
  17. look for leftover grains
  18. glucose powder
  19. a teaspoon
  20. slower
  21. sawdust
  22. False
  23. sugar
  24. a grown-up
  25. some stays undissolved
  26. False
  27. food colour
  28. False
  29. a magnet
  30. a comb
  31. False
  32. does not dissolve
  33. we keep it the same
  34. False
  35. the stirring
  36. sand
  37. cotton wool
  38. True
  39. False
  40. True

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