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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 889 · 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? Which of these is what we measure? (a) the amount of sugar (b) the water temperature (c) the kind of sugar (d) time to dissolve
  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) the amount of sugar (b) the stirring (c) the amount of water (d) the water temperature
  3. 3.True or false: small pebbles does not dissolve in water. (a) False (b) True
  4. 4.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
  5. 5.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  6. 6.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  7. 7.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.True or false: cooking oil dissolves in water. (a) True (b) False
  9. 9.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) chalk powder (d) cooking oil
  10. 10.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  11. 11.True or false: food colour dissolves in water. (a) False (b) True
  12. 12.🥄 Which of these dissolves in water? (a) sawdust (b) sugar (c) sand (d) small pebbles
  13. 13.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it spread in the water (d) it sank as sand
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) cotton wool (d) warm water
  15. 15.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
  16. 16.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) a magnet (d) sugar
  17. 17.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  18. 18.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) neither of them (d) both the same
  19. 19.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  20. 20.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) baking soda (d) cooking oil
  21. 21.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  22. 22.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  23. 23.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  24. 24.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) honey (c) a clock or timer (d) warm water
  25. 25.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) a magnet (d) two clear glasses
  26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) a clock or timer (d) honey
  27. 27.True or false: glucose powder dissolves in water. (a) True (b) False
  28. 28.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  29. 29.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a magnet (c) a comb (d) cotton wool
  30. 30.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) add more water (d) stir it more
  31. 31.True or false: food colour does not dissolve in water. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) baking soda (d) table salt
  33. 33.⚖️ 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 measure it (c) we keep it the same
  34. 34.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) a big sugar cube
  35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) cold water (d) a mirror
  36. 36.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
  38. 38.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) cooking oil (d) food colour
  39. 39.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  40. 40.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower

Answer key

  1. time to dissolve
  2. the water temperature
  3. True
  4. some stays undissolved
  5. False
  6. not needed
  7. does not dissolve
  8. False
  9. food colour
  10. False
  11. True
  12. sugar
  13. it spread in the water
  14. cotton wool
  15. a grown-up
  16. sugar
  17. True
  18. powdered sugar
  19. dissolves in water
  20. baking soda
  21. needed
  22. True
  23. not needed
  24. honey
  25. a magnet
  26. honey
  27. True
  28. faster
  29. cold water
  30. let the water evaporate
  31. False
  32. chalk powder
  33. we keep it the same
  34. a big sugar cube
  35. a mirror
  36. slower
  37. we keep it the same
  38. cooking oil
  39. needed
  40. slower

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