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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 43 · 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 a big sugar cube dissolve faster or slower? (a) slower (b) faster
  2. 2.⚖️ 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 change it (c) we measure it
  3. 3.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  4. 4.True or false: sugar stirred well dissolves slower. (a) True (b) False
  5. 5.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sand (c) food colour (d) baking soda
  6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
  7. 7.True or false: a big sugar cube dissolves faster. (a) True (b) False
  8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) time to dissolve (c) the water temperature (d) the amount of water
  9. 9.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
  10. 10.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
  13. 13.True or false: glucose powder dissolves in water. (a) False (b) True
  14. 14.True or false: sugar does not dissolve in water. (a) False (b) True
  15. 15.True or false: sugar dissolves in water. (a) False (b) True
  16. 16.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  17. 17.🔍 Which is the odd one out? (a) sand (b) baking soda (c) small pebbles (d) cooking oil
  18. 18.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
  19. 19.⚖️ 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
  20. 20.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
  21. 21.True or false: powdered sugar dissolves slower. (a) True (b) False
  22. 22.🥄 Which of these dissolves in water? (a) sawdust (b) table salt (c) cooking oil (d) sand
  23. 23.🥄 Which of these dissolves in water? (a) sugar (b) chalk powder (c) cooking oil (d) sand
  24. 24.⚖️ 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 water temperature (c) the kind of sugar (d) time to dissolve
  25. 25.🔍 Which is the odd one out? (a) sugar (b) sawdust (c) chalk powder (d) sand
  26. 26.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) cooking oil (d) sugar
  28. 28.True or false: chalk powder does not dissolve in water. (a) False (b) True
  29. 29.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) table salt (d) small pebbles
  30. 30.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  31. 31.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar left unstirred (d) sugar stirred well
  32. 32.⚖️ 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
  33. 33.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water
  34. 34.🛟 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
  35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) sugar (d) warm water
  36. 36.🔍 Which is the odd one out? (a) table salt (b) sand (c) glucose powder (d) food colour
  37. 37.True or false: honey is not needed for the dissolving test. (a) True (b) False
  38. 38.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  39. 39.⚖️ 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
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it

Answer key

  1. slower
  2. we keep it the same
  3. needed
  4. False
  5. sand
  6. faster
  7. False
  8. time to dissolve
  9. let the water evaporate
  10. False
  11. faster
  12. False
  13. True
  14. False
  15. True
  16. slower
  17. baking soda
  18. it settles at the bottom
  19. True
  20. it spread in the water
  21. False
  22. table salt
  23. sugar
  24. the water temperature
  25. sugar
  26. True
  27. cooking oil
  28. True
  29. small pebbles
  30. True
  31. sugar left unstirred
  32. False
  33. sugar in warm water
  34. look for leftover grains
  35. a balloon
  36. sand
  37. True
  38. not needed
  39. we keep it the same
  40. we keep it the same

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