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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 689 · 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 slower. (a) False (b) True
  2. 2.⚖️ 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
  3. 3.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  4. 4.⚖️ 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 keep it the same (c) we measure it
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) warm water (d) cold water
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the stirring
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) two clear glasses (c) a clock or timer (d) sugar
  8. 8.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  9. 9.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
  10. 10.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
  11. 11.True or false: chalk powder dissolves in water. (a) True (b) False
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the kind of sugar (c) time to dissolve (d) the amount of sugar
  13. 13.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  14. 14.True or false: sugar in warm water dissolves faster. (a) True (b) False
  15. 15.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  16. 16.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) sand (d) cooking oil
  17. 17.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a magnet (c) a mirror (d) cotton wool
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) two clear glasses (d) a mirror
  19. 19.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  20. 20.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) a magnet (d) a clock or timer
  21. 21.⚖️ 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
  22. 22.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) chalk powder (d) food colour
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
  24. 24.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  25. 25.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) honey (c) a clock or timer (d) two clear glasses
  27. 27.True or false: a big sugar cube dissolves faster. (a) True (b) False
  28. 28.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  29. 29.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a clock or timer (c) cold water (d) sugar
  30. 30.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
  32. 32.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) cooking oil (d) baking soda
  33. 33.True or false: chalk powder does not dissolve in water. (a) False (b) True
  34. 34.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  35. 35.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) stir it more (d) add more water
  36. 36.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  37. 37.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) sugar (d) sawdust
  38. 38.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  39. 39.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) cold water is wet (d) warm water is thicker
  40. 40.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) warm water (d) a comb

Answer key

  1. False
  2. we keep it the same
  3. slower
  4. we keep it the same
  5. honey
  6. the stirring
  7. cotton wool
  8. does not dissolve
  9. a grown-up
  10. powdered sugar
  11. False
  12. the water temperature
  13. False
  14. True
  15. not needed
  16. sugar
  17. cold water
  18. a mirror
  19. needed
  20. a clock or timer
  21. we keep it the same
  22. food colour
  23. False
  24. dissolves in water
  25. powdered sugar
  26. honey
  27. False
  28. True
  29. a mirror
  30. False
  31. faster
  32. baking soda
  33. True
  34. faster
  35. let the water evaporate
  36. slower
  37. sugar
  38. dissolves in water
  39. particles move faster
  40. a comb

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