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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 304 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
  2. 2.True or false: cold water is needed for the dissolving test. (a) True (b) False
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the water temperature (c) the amount of water (d) the amount of sugar
  4. 4.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) honey (c) a mirror (d) cold water
  5. 5.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it turns blue (d) it settles at the bottom
  6. 6.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  7. 7.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) table salt (d) cooking oil
  8. 8.True or false: a comb is needed for the dissolving test. (a) True (b) False
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
  10. 10.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  11. 11.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  12. 12.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  13. 13.🛟 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
  14. 14.⚖️ 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 keep it the same (c) we change it
  15. 15.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
  16. 16.True or false: sugar is needed for the dissolving test. (a) True (b) False
  17. 17.🔮 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) all of it dissolves (d) some stays undissolved
  18. 18.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  19. 19.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) small pebbles (d) sugar
  20. 20.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) sawdust (d) glucose powder
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  22. 22.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  23. 23.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  24. 24.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) warm water is thicker (d) cold water is wet
  25. 25.True or false: table salt does not dissolve in water. (a) True (b) False
  26. 26.True or false: chalk powder dissolves in water. (a) False (b) True
  27. 27.True or false: honey is needed for the dissolving test. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) food colour (b) sand (c) small pebbles (d) cooking oil
  29. 29.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) two clear glasses (c) a teaspoon (d) cold water
  31. 31.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  32. 32.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
  33. 33.True or false: glucose powder does not dissolve in water. (a) True (b) False
  34. 34.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  35. 35.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
  36. 36.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a mirror (c) a comb (d) a magnet
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the kind of sugar (c) the amount of water (d) time to dissolve
  38. 38.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) a balloon (d) cold water
  39. 39.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  40. 40.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed

Answer key

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

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