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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 780 · 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 honey for the dissolving test? (a) not needed (b) needed
  2. 2.True or false: sugar in icy water dissolves slower. (a) False (b) True
  3. 3.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  4. 4.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  5. 5.⚖️ 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
  6. 6.True or false: sand does not dissolve in water. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) sugar (b) food colour (c) sawdust (d) table salt
  8. 8.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) food colour (d) sand
  9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) a magnet (d) sugar
  10. 10.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  12. 12.⚖️ 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 amount of water (c) the water temperature
  13. 13.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
  14. 14.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) warm water is thicker (d) sugar likes the dark
  15. 15.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  16. 16.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) a teaspoon (d) cotton wool
  17. 17.True or false: baking soda does not dissolve in water. (a) False (b) True
  18. 18.True or false: a big sugar cube dissolves slower. (a) False (b) True
  19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a mirror (d) warm water
  20. 20.True or false: sugar in warm water dissolves faster. (a) False (b) True
  21. 21.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  22. 22.True or false: sawdust dissolves in water. (a) True (b) False
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
  24. 24.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  25. 25.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  26. 26.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it vanished for ever (d) it became air
  27. 27.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
  29. 29.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) a mirror (c) a magnet (d) honey
  30. 30.🔍 Which is the odd one out? (a) sand (b) sugar (c) baking soda (d) table salt
  31. 31.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) warm water (c) a magnet (d) cotton wool
  32. 32.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  33. 33.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) sugar (d) cold water
  34. 34.🔮 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) all of it dissolves (c) some stays undissolved (d) the water turns solid
  35. 35.True or false: table salt dissolves in water. (a) False (b) True
  36. 36.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) a big sugar cube (d) powdered sugar
  37. 37.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) time to dissolve (c) the water temperature
  39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) cold water (d) a balloon

Answer key

  1. not needed
  2. True
  3. slower
  4. not needed
  5. we keep it the same
  6. True
  7. sawdust
  8. sand
  9. a magnet
  10. True
  11. True
  12. the amount of water
  13. a grown-up
  14. particles move faster
  15. not needed
  16. cotton wool
  17. False
  18. True
  19. a mirror
  20. True
  21. dissolves in water
  22. False
  23. False
  24. needed
  25. False
  26. it spread in the water
  27. does not dissolve
  28. powdered sugar
  29. a teaspoon
  30. sand
  31. warm water
  32. not needed
  33. honey
  34. some stays undissolved
  35. True
  36. a big sugar cube
  37. does not dissolve
  38. the amount of sugar
  39. faster
  40. a balloon

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