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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 403 · 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) sand (b) table salt (c) sawdust (d) chalk powder
  2. 2.🥄 Which of these does not dissolve in water? (a) glucose powder (b) cooking oil (c) sugar (d) table salt
  3. 3.True or false: baking soda dissolves in water. (a) True (b) False
  4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) sugar (d) a magnet
  5. 5.⚖️ 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 stirring (c) the amount of sugar (d) the water temperature
  6. 6.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  7. 7.⚖️ 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
  8. 8.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) sugar (b) food colour (c) sand (d) table salt
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) sugar (c) a teaspoon (d) cold water
  11. 11.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  12. 12.True or false: sugar stirred well dissolves faster. (a) False (b) True
  13. 13.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) all of it dissolves (d) the sugar turns to salt
  14. 14.⚖️ 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 change it (c) we keep it the same
  15. 15.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
  16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) a mirror (d) cold water
  17. 17.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  18. 18.True or false: warm water is needed for the dissolving test. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) food colour (d) sugar
  20. 20.True or false: sawdust does not dissolve in water. (a) True (b) False
  21. 21.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
  22. 22.🔍 Which is the odd one out? (a) food colour (b) small pebbles (c) glucose powder (d) baking soda
  23. 23.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  24. 24.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) sawdust (d) food colour
  25. 25.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  26. 26.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  27. 27.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  28. 28.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar in icy water (d) sugar left unstirred
  29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) cold water (c) a clock or timer (d) sugar
  30. 30.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  31. 31.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
  32. 32.True or false: sugar in warm water dissolves slower. (a) True (b) False
  33. 33.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a comb (c) two clear glasses (d) a clock or timer
  34. 34.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) food colour (d) cooking oil
  35. 35.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  36. 36.🔍 Which is the odd one out? (a) baking soda (b) sand (c) small pebbles (d) cooking oil
  37. 37.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
  39. 39.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) a teaspoon (d) honey
  40. 40.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. table salt
  2. cooking oil
  3. True
  4. a magnet
  5. the water temperature
  6. slower
  7. we keep it the same
  8. True
  9. sand
  10. honey
  11. True
  12. True
  13. some stays undissolved
  14. we keep it the same
  15. look for leftover grains
  16. a mirror
  17. needed
  18. True
  19. sawdust
  20. True
  21. a grown-up
  22. small pebbles
  23. True
  24. food colour
  25. faster
  26. does not dissolve
  27. True
  28. sugar in warm water
  29. a comb
  30. does not dissolve
  31. True
  32. False
  33. a comb
  34. food colour
  35. slower
  36. baking soda
  37. False
  38. we measure it
  39. honey
  40. dissolves in water

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