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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 66 · 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 in warm water dissolves faster. (a) False (b) True
  2. 2.⚖️ 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 amount of sugar (c) the water temperature (d) the amount of water
  3. 3.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  4. 4.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  5. 5.⚖️ 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) time to dissolve (c) the water temperature (d) the amount of water
  6. 6.⚖️ 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) True (b) False
  7. 7.🥄 Which of these does not dissolve in water? (a) sugar (b) sand (c) baking soda (d) food colour
  8. 8.True or false: sugar stirred well dissolves slower. (a) False (b) True
  9. 9.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water
  10. 10.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) sawdust (d) glucose powder
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the kind of sugar (c) time to dissolve
  12. 12.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  13. 13.True or false: food colour does not dissolve in water. (a) True (b) False
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  15. 15.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) powdered sugar
  16. 16.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  17. 17.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
  18. 18.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) a comb (d) cold water
  19. 19.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) baking soda (d) small pebbles
  20. 20.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  21. 21.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  22. 22.True or false: sawdust does not dissolve in water. (a) False (b) True
  23. 23.True or false: a comb is needed for the dissolving test. (a) True (b) False
  24. 24.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
  25. 25.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) warm water is thicker (d) particles move faster
  26. 26.True or false: food colour dissolves in water. (a) True (b) False
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) cotton wool (d) a clock or timer
  28. 28.⚖️ 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
  29. 29.🔍 Which is the odd one out? (a) sand (b) sugar (c) baking soda (d) table salt
  30. 30.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  31. 31.True or false: a big sugar cube dissolves slower. (a) False (b) True
  32. 32.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  33. 33.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) chalk powder (d) table salt
  34. 34.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
  35. 35.True or false: sugar is needed for the dissolving test. (a) False (b) True
  36. 36.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar in icy water (d) sugar stirred well
  37. 37.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
  39. 39.True or false: sugar dissolves in water. (a) True (b) False
  40. 40.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cold water (c) two clear glasses (d) a balloon

Answer key

  1. True
  2. the water temperature
  3. dissolves in water
  4. True
  5. time to dissolve
  6. False
  7. sand
  8. False
  9. sugar in warm water
  10. glucose powder
  11. the kind of sugar
  12. not needed
  13. False
  14. True
  15. powdered sugar
  16. needed
  17. a grown-up
  18. cold water
  19. small pebbles
  20. faster
  21. does not dissolve
  22. True
  23. False
  24. faster
  25. particles move faster
  26. True
  27. cotton wool
  28. we keep it the same
  29. sand
  30. faster
  31. True
  32. slower
  33. table salt
  34. sugar left unstirred
  35. True
  36. sugar in icy water
  37. slower
  38. False
  39. True
  40. a balloon

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