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Dissolving Experiment Worksheet: Warm and Cold Water

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

Answer key

  1. a comb
  2. a big sugar cube
  3. the water temperature
  4. baking soda
  5. True
  6. small pebbles
  7. False
  8. True
  9. cotton wool
  10. dissolves in water
  11. it settles at the bottom
  12. faster
  13. needed
  14. True
  15. sawdust
  16. False
  17. honey
  18. slower
  19. True
  20. honey
  21. it spread in the water
  22. True
  23. not needed
  24. table salt
  25. sugar
  26. False
  27. dissolves in water
  28. False
  29. not needed
  30. powdered sugar
  31. False
  32. True
  33. does not dissolve
  34. a magnet
  35. some stays undissolved
  36. sugar
  37. sugar stirred well
  38. faster
  39. the stirring
  40. a grown-up

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