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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 331 · 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 is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) honey (d) cold water
  2. 2.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) a clock or timer (c) sugar (d) two clear glasses
  3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a mirror (d) warm water
  4. 4.🔍 Which is the odd one out? (a) sugar (b) table salt (c) glucose powder (d) sawdust
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) warm water (d) a magnet
  6. 6.True or false: a big sugar cube dissolves slower. (a) False (b) True
  7. 7.True or false: cold water is needed for the dissolving test. (a) False (b) True
  8. 8.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar left unstirred
  9. 9.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) two clear glasses (d) cotton wool
  10. 10.True or false: baking soda dissolves in water. (a) False (b) True
  11. 11.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  12. 12.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) sugar (c) a clock or timer (d) two clear glasses
  13. 13.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a balloon (c) a teaspoon (d) two clear glasses
  15. 15.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  16. 16.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  17. 17.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) chalk powder (d) baking soda
  19. 19.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  20. 20.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  21. 21.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) glucose powder (d) chalk powder
  22. 22.⚖️ 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) True (b) False
  23. 23.⚖️ 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
  24. 24.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.🔍 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
  26. 26.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) cooking oil (d) chalk powder
  27. 27.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
  28. 28.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  29. 29.⚖️ 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 stirring (d) the kind of sugar
  30. 30.⚖️ 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
  31. 31.True or false: cooking oil does not dissolve in water. (a) True (b) False
  32. 32.🔍 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 vanished for ever (d) it became air
  33. 33.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) sand (d) table salt
  34. 34.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  35. 35.True or false: a big sugar cube dissolves faster. (a) False (b) True
  36. 36.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
  37. 37.⚖️ 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
  38. 38.True or false: cold water 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? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
  40. 40.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster

Answer key

  1. honey
  2. a balloon
  3. a mirror
  4. sawdust
  5. a magnet
  6. True
  7. True
  8. sugar left unstirred
  9. cotton wool
  10. True
  11. True
  12. a magnet
  13. a grown-up
  14. a balloon
  15. False
  16. needed
  17. False
  18. baking soda
  19. True
  20. does not dissolve
  21. glucose powder
  22. True
  23. we keep it the same
  24. dissolves in water
  25. it settles at the bottom
  26. sugar
  27. look for leftover grains
  28. does not dissolve
  29. time to dissolve
  30. False
  31. True
  32. it spread in the water
  33. sand
  34. not needed
  35. False
  36. faster
  37. we keep it the same
  38. False
  39. we keep it the same
  40. faster

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