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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 990 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  2. 2.🧺 Which of these is needed for the dissolving test? (a) sugar (b) cotton wool (c) a comb (d) a balloon
  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) the water temperature (b) the stirring (c) the amount of sugar (d) time to dissolve
  4. 4.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) the same (d) not at all
  5. 5.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
  6. 6.True or false: sugar stirred well dissolves slower. (a) True (b) False
  7. 7.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
  8. 8.⚖️ 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) time to dissolve (c) the amount of sugar
  9. 9.True or false: sugar in warm water dissolves slower. (a) True (b) False
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a mirror (d) a teaspoon
  11. 11.True or false: warm water is needed for the dissolving test. (a) False (b) True
  12. 12.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  13. 13.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) chalk powder (d) glucose powder
  14. 14.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  15. 15.🔍 Which is the odd one out? (a) cooking oil (b) baking soda (c) glucose powder (d) sugar
  16. 16.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  17. 17.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
  19. 19.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) sugar (c) cold water (d) a clock or timer
  21. 21.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  22. 22.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) table salt (d) sawdust
  23. 23.True or false: sugar does not dissolve in water. (a) True (b) False
  24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) two clear glasses (c) warm water (d) a clock or timer
  25. 25.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) table salt (d) chalk powder
  26. 26.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) the water turns solid (d) all of it dissolves
  27. 27.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  28. 28.True or false: sawdust dissolves in water. (a) False (b) True
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
  30. 30.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) cooking oil (d) baking soda
  31. 31.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
  33. 33.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  34. 34.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  35. 35.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  36. 36.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  37. 37.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) sugar (d) cooking oil
  38. 38.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a balloon (c) sugar (d) two clear glasses
  39. 39.True or false: powdered sugar dissolves slower. (a) True (b) False
  40. 40.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water

Answer key

  1. True
  2. sugar
  3. the water temperature
  4. faster
  5. a grown-up
  6. False
  7. powdered sugar
  8. the amount of sugar
  9. False
  10. a mirror
  11. True
  12. dissolves in water
  13. glucose powder
  14. does not dissolve
  15. cooking oil
  16. False
  17. False
  18. we keep it the same
  19. particles move faster
  20. a magnet
  21. False
  22. table salt
  23. False
  24. cotton wool
  25. table salt
  26. some stays undissolved
  27. does not dissolve
  28. False
  29. True
  30. baking soda
  31. needed
  32. we measure it
  33. slower
  34. needed
  35. True
  36. not needed
  37. sugar
  38. a balloon
  39. False
  40. does not dissolve

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