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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 87 · 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.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) small pebbles (d) table salt
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) time to dissolve (c) the water temperature (d) the stirring
  3. 3.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a magnet (c) two clear glasses (d) cold water
  4. 4.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
  5. 5.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) baking soda (d) cooking oil
  7. 7.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
  8. 8.⚖️ 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 water temperature (c) the amount of sugar (d) the stirring
  9. 9.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) glucose powder (d) sand
  10. 10.🔍 Which is the odd one out? (a) sand (b) glucose powder (c) cooking oil (d) sawdust
  11. 11.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  12. 12.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  13. 13.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar in icy water
  14. 14.🥄 Which of these dissolves in water? (a) table salt (b) sawdust (c) chalk powder (d) small pebbles
  15. 15.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  16. 16.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) two clear glasses (d) a magnet
  17. 17.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  18. 18.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) sawdust (d) sand
  19. 19.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  20. 20.True or false: glucose powder does not dissolve in water. (a) True (b) False
  21. 21.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
  22. 22.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cold water (c) a comb (d) a balloon
  23. 23.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cotton wool (c) two clear glasses (d) a clock or timer
  25. 25.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  26. 26.🥄 Which of these does not dissolve in water? (a) baking soda (b) small pebbles (c) table salt (d) sugar
  27. 27.True or false: sugar dissolves in water. (a) False (b) True
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) a magnet (d) two clear glasses
  29. 29.True or false: powdered sugar dissolves slower. (a) False (b) True
  30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
  31. 31.⚖️ 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 measure it (c) we keep it the same
  32. 32.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) food colour (d) chalk powder
  33. 33.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it settles at the bottom (d) it floats up
  34. 34.True or false: sawdust does not dissolve in water. (a) True (b) False
  35. 35.True or false: table salt does not dissolve in water. (a) True (b) False
  36. 36.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  37. 37.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  38. 38.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar in warm water
  39. 39.🥄 Which of these does not dissolve in water? (a) sand (b) baking soda (c) table salt (d) sugar
  40. 40.⚖️ 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 measure it (c) we keep it the same

Answer key

  1. small pebbles
  2. time to dissolve
  3. a magnet
  4. True
  5. False
  6. baking soda
  7. a grown-up
  8. the water temperature
  9. sand
  10. glucose powder
  11. slower
  12. False
  13. sugar in icy water
  14. table salt
  15. False
  16. two clear glasses
  17. not needed
  18. table salt
  19. slower
  20. False
  21. some stays undissolved
  22. cold water
  23. not needed
  24. cotton wool
  25. needed
  26. small pebbles
  27. True
  28. a magnet
  29. False
  30. powdered sugar
  31. we keep it the same
  32. food colour
  33. it settles at the bottom
  34. True
  35. False
  36. dissolves in water
  37. dissolves in water
  38. sugar in warm water
  39. sand
  40. we keep it the same

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