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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 357 · 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) sawdust (b) small pebbles (c) sand (d) food colour
  2. 2.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  3. 3.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  4. 4.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  5. 5.True or false: powdered sugar dissolves faster. (a) False (b) True
  6. 6.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  7. 7.True or false: table salt dissolves in water. (a) True (b) False
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) cold water (d) cotton wool
  9. 9.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) not at all (d) the same
  10. 10.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  11. 11.🥄 Which of these dissolves in water? (a) glucose powder (b) cooking oil (c) small pebbles (d) chalk powder
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
  13. 13.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  14. 14.⚖️ 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 stirring (d) the amount of sugar
  15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a mirror (d) a clock or timer
  16. 16.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a rainbow (d) a magnet
  17. 17.True or false: food colour dissolves in water. (a) True (b) False
  18. 18.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  19. 19.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
  20. 20.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  21. 21.🧺 Which of these is needed for the dissolving test? (a) a comb (b) honey (c) two clear glasses (d) cotton wool
  22. 22.🔮 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
  23. 23.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar left unstirred (d) powdered sugar
  24. 24.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) cold water (d) cotton wool
  25. 25.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) sugar in warm water (d) powdered sugar
  26. 26.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the water temperature (c) the kind of sugar (d) time to dissolve
  28. 28.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  30. 30.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  31. 31.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  32. 32.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  33. 33.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar in warm water
  35. 35.⚖️ 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 change it (c) we keep it the same
  36. 36.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
  39. 39.True or false: sand dissolves in water. (a) False (b) True
  40. 40.🥄 Which of these dissolves in water? (a) cooking oil (b) food colour (c) small pebbles (d) sand

Answer key

  1. food colour
  2. needed
  3. True
  4. not needed
  5. True
  6. faster
  7. True
  8. cotton wool
  9. faster
  10. faster
  11. glucose powder
  12. True
  13. not needed
  14. time to dissolve
  15. a mirror
  16. a solution
  17. True
  18. does not dissolve
  19. True
  20. needed
  21. two clear glasses
  22. some stays undissolved
  23. sugar left unstirred
  24. cotton wool
  25. a big sugar cube
  26. not needed
  27. the water temperature
  28. dissolves in water
  29. does not dissolve
  30. does not dissolve
  31. False
  32. needed
  33. dissolves in water
  34. sugar in warm water
  35. we keep it the same
  36. slower
  37. we change it
  38. True
  39. False
  40. food colour

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