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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 429 · 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 food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  4. 4.True or false: baking soda does not dissolve in water. (a) True (b) False
  5. 5.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cold water (c) a teaspoon (d) honey
  6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a mirror (d) a teaspoon
  7. 7.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) cotton wool (d) cold water
  9. 9.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) table salt (d) sand
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a comb (d) two clear glasses
  11. 11.True or false: sawdust dissolves in water. (a) True (b) False
  12. 12.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
  14. 14.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) chalk powder (d) sugar
  15. 15.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  16. 16.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
  17. 17.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it spread in the water (d) it vanished for ever
  18. 18.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  19. 19.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  20. 20.🥄 Which of these does not dissolve in water? (a) food colour (b) sawdust (c) baking soda (d) table salt
  21. 21.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  22. 22.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) sawdust (d) chalk powder
  23. 23.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  24. 24.True or false: a big sugar cube dissolves slower. (a) False (b) True
  25. 25.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cotton wool (c) a teaspoon (d) a clock or timer
  26. 26.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  27. 27.⚖️ 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
  28. 28.True or false: sugar stirred well dissolves slower. (a) False (b) True
  29. 29.⚖️ 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 keep it the same (c) we change it
  30. 30.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  31. 31.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the kind of sugar (c) time to dissolve (d) the amount of water
  33. 33.True or false: sugar in warm water dissolves slower. (a) True (b) False
  34. 34.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar stirred well
  35. 35.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
  36. 36.True or false: sugar in icy water dissolves faster. (a) True (b) False
  37. 37.True or false: cold water is needed for the dissolving test. (a) False (b) True
  38. 38.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
  40. 40.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster

Answer key

  1. dissolves in water
  2. we keep it the same
  3. we keep it the same
  4. False
  5. honey
  6. a mirror
  7. needed
  8. cotton wool
  9. table salt
  10. a comb
  11. False
  12. sugar in warm water
  13. False
  14. sugar
  15. dissolves in water
  16. look for leftover grains
  17. it spread in the water
  18. dissolves in water
  19. False
  20. sawdust
  21. slower
  22. food colour
  23. faster
  24. True
  25. cotton wool
  26. True
  27. False
  28. False
  29. we keep it the same
  30. not needed
  31. powdered sugar
  32. time to dissolve
  33. False
  34. sugar stirred well
  35. faster
  36. False
  37. True
  38. False
  39. True
  40. slower

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