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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 253 · 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 of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
  2. 2.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  4. 4.⚖️ 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 measure it (c) we keep it the same
  5. 5.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar left unstirred (d) sugar in icy water
  6. 6.True or false: table salt does not dissolve in water. (a) False (b) True
  7. 7.True or false: sugar in warm water dissolves slower. (a) False (b) True
  8. 8.True or false: baking soda dissolves in water. (a) False (b) True
  9. 9.True or false: a comb is needed for the dissolving test. (a) True (b) False
  10. 10.🥄 Which of these dissolves in water? (a) sawdust (b) baking soda (c) small pebbles (d) cooking oil
  11. 11.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) sugar likes the dark (d) warm water is thicker
  12. 12.🔍 Which is the odd one out? (a) chalk powder (b) food colour (c) small pebbles (d) sand
  13. 13.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  14. 14.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) both the same (d) powdered sugar
  15. 15.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) a comb (d) cold water
  16. 16.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) food colour (d) sugar
  17. 17.True or false: powdered sugar dissolves faster. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) sugar (b) sand (c) food colour (d) glucose powder
  19. 19.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) sugar in warm water (d) powdered sugar
  20. 20.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  21. 21.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a clock or timer (d) sugar
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) the kind of sugar (d) time to dissolve
  23. 23.🔮 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
  24. 24.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) cold water (d) cotton wool
  25. 25.True or false: sugar dissolves in water. (a) True (b) False
  26. 26.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  27. 27.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  28. 28.🥄 Which of these dissolves in water? (a) table salt (b) small pebbles (c) sawdust (d) sand
  29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) warm water (d) a balloon
  30. 30.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  31. 31.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) honey (d) warm water
  32. 32.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  33. 33.True or false: a big sugar cube dissolves faster. (a) True (b) False
  34. 34.True or false: sand dissolves in water. (a) True (b) False
  35. 35.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  36. 36.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it turns blue (d) it settles at the bottom
  37. 37.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  38. 38.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
  39. 39.🥄 Which of these does not dissolve in water? (a) sugar (b) small pebbles (c) food colour (d) glucose powder
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a clock or timer (c) warm water (d) two clear glasses

Answer key

  1. sugar stirred well
  2. does not dissolve
  3. dissolves in water
  4. we keep it the same
  5. sugar in warm water
  6. False
  7. False
  8. True
  9. False
  10. baking soda
  11. particles move faster
  12. food colour
  13. slower
  14. powdered sugar
  15. cold water
  16. sawdust
  17. True
  18. sand
  19. sugar in icy water
  20. faster
  21. a balloon
  22. time to dissolve
  23. some stays undissolved
  24. cotton wool
  25. True
  26. slower
  27. faster
  28. table salt
  29. a balloon
  30. dissolves in water
  31. honey
  32. True
  33. False
  34. False
  35. does not dissolve
  36. it settles at the bottom
  37. needed
  38. a grown-up
  39. small pebbles
  40. cotton wool

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