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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 224 · 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.True or false: sugar stirred well dissolves faster. (a) False (b) True
  2. 2.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  3. 3.🥄 Which of these does not dissolve in water? (a) food colour (b) chalk powder (c) baking soda (d) sugar
  4. 4.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  5. 5.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  6. 6.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  7. 7.True or false: powdered sugar dissolves slower. (a) True (b) False
  8. 8.⚖️ 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) True (b) False
  9. 9.True or false: table salt dissolves in water. (a) False (b) True
  10. 10.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  11. 11.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
  12. 12.True or false: cold water is needed for the dissolving test. (a) True (b) False
  13. 13.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  14. 14.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
  15. 15.🔍 Which is the odd one out? (a) small pebbles (b) food colour (c) sand (d) chalk powder
  16. 16.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  17. 17.⚖️ 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
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) sugar (c) cold water (d) warm water
  19. 19.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  20. 20.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
  23. 23.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) sugar (c) a balloon (d) cotton wool
  24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) time to dissolve (c) the amount of sugar (d) the amount of water
  25. 25.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
  26. 26.True or false: sugar does not dissolve in water. (a) True (b) False
  27. 27.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) warm water (c) two clear glasses (d) cold water
  28. 28.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  29. 29.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) glucose powder (d) sawdust
  30. 30.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  31. 31.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the stirring (c) the water temperature (d) the amount of water
  33. 33.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  34. 34.🥄 Which of these does not dissolve in water? (a) table salt (b) sand (c) food colour (d) glucose powder
  35. 35.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) warm water (d) honey
  36. 36.⚖️ 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
  37. 37.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  38. 38.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it floats up (d) it settles at the bottom
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  40. 40.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cold water (c) a magnet (d) sugar

Answer key

  1. True
  2. does not dissolve
  3. chalk powder
  4. False
  5. True
  6. slower
  7. False
  8. True
  9. True
  10. faster
  11. particles move faster
  12. True
  13. True
  14. some stays undissolved
  15. food colour
  16. faster
  17. we measure it
  18. a mirror
  19. True
  20. False
  21. we keep it the same
  22. we change it
  23. sugar
  24. time to dissolve
  25. look for leftover grains
  26. False
  27. a mirror
  28. faster
  29. glucose powder
  30. not needed
  31. True
  32. the water temperature
  33. needed
  34. sand
  35. warm water
  36. True
  37. does not dissolve
  38. it settles at the bottom
  39. True
  40. a magnet

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