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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 978 · 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.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  2. 2.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) cold water is wet (d) particles move faster
  3. 3.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  4. 4.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
  5. 5.True or false: a big sugar cube dissolves slower. (a) True (b) False
  6. 6.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  7. 7.True or false: sugar in warm water dissolves faster. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) food colour (b) table salt (c) baking soda (d) small pebbles
  9. 9.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  10. 10.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
  11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) honey (c) a teaspoon (d) warm water
  12. 12.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  13. 13.True or false: powdered sugar dissolves faster. (a) False (b) True
  14. 14.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) table salt (d) sand
  15. 15.🥄 Which of these does not dissolve in water? (a) baking soda (b) sand (c) table salt (d) food colour
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
  17. 17.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  18. 18.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
  19. 19.True or false: sand dissolves in water. (a) True (b) False
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a teaspoon (d) a mirror
  21. 21.⚖️ 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
  22. 22.True or false: sawdust does not dissolve in water. (a) False (b) True
  23. 23.True or false: sugar in warm water dissolves slower. (a) True (b) False
  24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
  25. 25.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
  26. 26.🧺 Which of these is needed for the dissolving test? (a) honey (b) a teaspoon (c) a comb (d) a magnet
  27. 27.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  28. 28.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
  29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) sugar (c) warm water (d) cold water
  30. 30.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  31. 31.🔍 Which is the odd one out? (a) table salt (b) small pebbles (c) chalk powder (d) sawdust
  32. 32.True or false: sugar is needed for the dissolving test. (a) True (b) False
  33. 33.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
  34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the kind of sugar (c) the amount of water (d) the amount of sugar
  35. 35.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it sank as sand (d) it became air
  36. 36.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) two clear glasses (d) a balloon
  37. 37.True or false: warm water is needed for the dissolving test. (a) True (b) False
  38. 38.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) a mirror (d) a comb
  39. 39.True or false: cooking oil does not dissolve in water. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) sand (d) table salt

Answer key

  1. needed
  2. particles move faster
  3. dissolves in water
  4. sugar left unstirred
  5. True
  6. dissolves in water
  7. True
  8. small pebbles
  9. needed
  10. some stays undissolved
  11. honey
  12. not needed
  13. True
  14. table salt
  15. sand
  16. we keep it the same
  17. faster
  18. a grown-up
  19. False
  20. a mirror
  21. we keep it the same
  22. True
  23. False
  24. we change it
  25. a big sugar cube
  26. a teaspoon
  27. does not dissolve
  28. faster
  29. a magnet
  30. slower
  31. table salt
  32. True
  33. powdered sugar
  34. time to dissolve
  35. it spread in the water
  36. a balloon
  37. True
  38. sugar
  39. True
  40. sand

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