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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 469 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
  2. 2.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a clock or timer (c) sugar (d) two clear glasses
  3. 3.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) table salt (d) cooking oil
  4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a clock or timer (d) a magnet
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) a clock or timer (d) a mirror
  6. 6.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) cooking oil (d) glucose powder
  7. 7.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  8. 8.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) a teaspoon (d) a magnet
  9. 9.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) sugar stirred well (d) powdered sugar
  10. 10.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) table salt (d) sand
  11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) both the same (d) neither of them
  12. 12.True or false: sugar does not dissolve in water. (a) False (b) True
  13. 13.🥄 Which of these dissolves in water? (a) food colour (b) small pebbles (c) sawdust (d) sand
  14. 14.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) table salt (b) sugar (c) sand (d) baking soda
  16. 16.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  17. 17.True or false: sugar stirred well dissolves slower. (a) True (b) False
  18. 18.True or false: sugar in warm water dissolves faster. (a) True (b) False
  19. 19.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  20. 20.True or false: a comb is needed for the dissolving test. (a) False (b) True
  21. 21.True or false: food colour does not dissolve in water. (a) True (b) False
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  23. 23.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  24. 24.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  25. 25.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
  26. 26.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a teaspoon (d) cotton wool
  28. 28.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  29. 29.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
  31. 31.True or false: sawdust does not dissolve in water. (a) False (b) True
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
  33. 33.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  34. 34.True or false: glucose powder dissolves in water. (a) False (b) True
  35. 35.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
  36. 36.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) sugar (d) honey
  38. 38.🔮 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) the sugar turns to salt (d) some stays undissolved
  39. 39.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) sawdust (d) table salt
  40. 40.True or false: a magnet is needed for the dissolving test. (a) True (b) False

Answer key

  1. faster
  2. a mirror
  3. cooking oil
  4. a magnet
  5. a mirror
  6. glucose powder
  7. faster
  8. a teaspoon
  9. sugar in icy water
  10. sand
  11. powdered sugar
  12. False
  13. food colour
  14. False
  15. sand
  16. not needed
  17. False
  18. True
  19. slower
  20. False
  21. False
  22. we keep it the same
  23. False
  24. False
  25. sugar in warm water
  26. does not dissolve
  27. cotton wool
  28. False
  29. not needed
  30. we measure it
  31. True
  32. we keep it the same
  33. dissolves in water
  34. True
  35. particles move faster
  36. slower
  37. honey
  38. some stays undissolved
  39. sawdust
  40. False

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