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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 85 · 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) chalk powder (b) sawdust (c) sand (d) glucose powder
  2. 2.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) powdered sugar
  3. 3.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) baking soda (d) cooking oil
  4. 4.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  5. 5.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  6. 6.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  7. 7.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) food colour (d) sand
  9. 9.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
  10. 10.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it vanished for ever (d) it spread in the water
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
  12. 12.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  13. 13.True or false: powdered sugar dissolves faster. (a) False (b) True
  14. 14.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) sugar stirred well (d) powdered sugar
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of water (c) the water temperature (d) the amount of sugar
  16. 16.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
  17. 17.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
  18. 18.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) sugar (d) sand
  19. 19.True or false: sugar stirred well dissolves slower. (a) False (b) True
  20. 20.True or false: sugar in warm water dissolves slower. (a) True (b) False
  21. 21.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) both the same (d) neither of them
  23. 23.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
  24. 24.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  25. 25.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
  26. 26.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  27. 27.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  28. 28.⚖️ 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 amount of sugar
  29. 29.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a comb (c) two clear glasses (d) honey
  30. 30.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  31. 31.🧺 Which of these is needed for the dissolving test? (a) warm water (b) cotton wool (c) a balloon (d) honey
  32. 32.True or false: food colour does not dissolve in water. (a) True (b) False
  33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a balloon (d) a clock or timer
  34. 34.True or false: a magnet is needed for the dissolving test. (a) False (b) True
  35. 35.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it floats up (d) it turns blue
  36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
  37. 37.True or false: sugar dissolves in water. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) sugar (d) baking soda
  39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  40. 40.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) sand (d) table salt

Answer key

  1. glucose powder
  2. powdered sugar
  3. baking soda
  4. False
  5. needed
  6. does not dissolve
  7. dissolves in water
  8. food colour
  9. some stays undissolved
  10. it spread in the water
  11. False
  12. not needed
  13. True
  14. a big sugar cube
  15. the water temperature
  16. particles move faster
  17. a grown-up
  18. sugar
  19. False
  20. False
  21. needed
  22. powdered sugar
  23. False
  24. needed
  25. look for leftover grains
  26. not needed
  27. dissolves in water
  28. the amount of sugar
  29. two clear glasses
  30. not needed
  31. warm water
  32. False
  33. a balloon
  34. False
  35. it settles at the bottom
  36. we change it
  37. True
  38. cooking oil
  39. faster
  40. sand

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