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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 542 · 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? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
  2. 2.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) chalk powder (d) table salt
  3. 3.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) glucose powder (d) sawdust
  4. 4.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  5. 5.True or false: sugar in icy water dissolves faster. (a) True (b) False
  6. 6.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  7. 7.True or false: sugar in icy water dissolves slower. (a) False (b) True
  8. 8.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a teaspoon (c) honey (d) cotton wool
  9. 9.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
  10. 10.True or false: warm water is needed for the dissolving test. (a) True (b) False
  11. 11.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) a big sugar cube (d) sugar in icy water
  12. 12.🔍 Which is the odd one out? (a) sugar (b) food colour (c) sawdust (d) glucose powder
  13. 13.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) warm water (d) honey
  15. 15.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
  16. 16.True or false: small pebbles does not dissolve in water. (a) False (b) True
  17. 17.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  18. 18.🔮 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
  19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) sugar (c) a clock or timer (d) a teaspoon
  20. 20.🔮 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
  21. 21.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
  22. 22.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  23. 23.⚖️ 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 keep it the same (c) we measure it
  24. 24.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  25. 25.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  26. 26.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  27. 27.True or false: table salt does not dissolve in water. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) sawdust (d) chalk powder
  29. 29.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
  30. 30.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  31. 31.🥄 Which of these does not dissolve in water? (a) cooking oil (b) table salt (c) sugar (d) baking soda
  32. 32.True or false: powdered sugar dissolves faster. (a) True (b) False
  33. 33.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  34. 34.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
  35. 35.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  36. 36.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
  37. 37.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  38. 38.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a balloon (c) a mirror (d) cotton wool
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  40. 40.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False

Answer key

  1. we keep it the same
  2. chalk powder
  3. glucose powder
  4. needed
  5. False
  6. not needed
  7. True
  8. a teaspoon
  9. a big sugar cube
  10. True
  11. sugar stirred well
  12. sawdust
  13. needed
  14. honey
  15. sugar left unstirred
  16. True
  17. False
  18. powdered sugar
  19. a mirror
  20. some stays undissolved
  21. look for leftover grains
  22. not needed
  23. we keep it the same
  24. slower
  25. needed
  26. True
  27. False
  28. sugar
  29. faster
  30. dissolves in water
  31. cooking oil
  32. True
  33. not needed
  34. sugar in warm water
  35. not needed
  36. a grown-up
  37. faster
  38. two clear glasses
  39. True
  40. True

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