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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 244 · 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.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  2. 2.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) not at all (d) slower
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the stirring (c) time to dissolve (d) the kind of sugar
  4. 4.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) keep it in a fridge (d) let the water evaporate
  5. 5.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) sugar (d) glucose powder
  7. 7.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  8. 8.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) glucose powder (d) chalk powder
  9. 9.⚖️ 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
  10. 10.True or false: table salt does not dissolve in water. (a) False (b) True
  11. 11.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
  13. 13.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  14. 14.True or false: honey is needed for the dissolving test. (a) True (b) False
  15. 15.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) sugar (d) cooking oil
  16. 16.⚖️ 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
  17. 17.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  18. 18.True or false: sugar dissolves in water. (a) True (b) False
  19. 19.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
  20. 20.⚖️ 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
  21. 21.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  22. 22.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) some stays undissolved (d) all of it dissolves
  23. 23.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) cold water (d) cotton wool
  24. 24.True or false: a big sugar cube dissolves faster. (a) True (b) False
  25. 25.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  26. 26.⚖️ 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) False (b) True
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
  28. 28.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  29. 29.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well
  30. 30.True or false: glucose powder dissolves in water. (a) True (b) False
  31. 31.⚖️ 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
  32. 32.🔍 Which is the odd one out? (a) cooking oil (b) glucose powder (c) chalk powder (d) sand
  33. 33.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) a big sugar cube (d) sugar stirred well
  34. 34.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  35. 35.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
  36. 36.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  37. 37.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) sugar (c) cold water (d) a balloon
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
  39. 39.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  40. 40.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) food colour (d) sand

Answer key

  1. dissolves in water
  2. faster
  3. time to dissolve
  4. let the water evaporate
  5. False
  6. small pebbles
  7. False
  8. glucose powder
  9. False
  10. False
  11. dissolves in water
  12. it settles at the bottom
  13. faster
  14. False
  15. sugar
  16. True
  17. faster
  18. True
  19. look for leftover grains
  20. we change it
  21. does not dissolve
  22. some stays undissolved
  23. cotton wool
  24. False
  25. needed
  26. False
  27. we keep it the same
  28. needed
  29. sugar left unstirred
  30. True
  31. we keep it the same
  32. glucose powder
  33. a big sugar cube
  34. faster
  35. False
  36. does not dissolve
  37. a balloon
  38. True
  39. slower
  40. sand

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