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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 443 · 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.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  2. 2.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  3. 3.⚖️ 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
  4. 4.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) a comb (d) cold water
  5. 5.True or false: sawdust dissolves in water. (a) True (b) False
  6. 6.True or false: a big sugar cube dissolves slower. (a) False (b) True
  7. 7.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  8. 8.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  9. 9.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
  10. 10.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  11. 11.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
  12. 12.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
  14. 14.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
  15. 15.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  16. 16.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
  18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
  20. 20.⚖️ 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
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
  22. 22.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a comb (c) a clock or timer (d) a magnet
  23. 23.🔍 Which is the odd one out? (a) food colour (b) sawdust (c) glucose powder (d) sugar
  24. 24.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) powdered sugar (d) sugar in icy water
  25. 25.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) a big sugar cube (d) sugar left unstirred
  26. 26.True or false: sugar dissolves in water. (a) False (b) True
  27. 27.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cotton wool (c) sugar (d) warm water
  29. 29.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a teaspoon (d) honey
  31. 31.True or false: cooking oil dissolves in water. (a) True (b) False
  32. 32.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) small pebbles (d) sugar
  33. 33.🥄 Which of these does not dissolve in water? (a) food colour (b) chalk powder (c) glucose powder (d) sugar
  34. 34.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) cold water (d) a clock or timer
  35. 35.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  36. 36.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  37. 37.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it sank as sand (d) it spread in the water
  38. 38.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) warm water is thicker (d) cold water is wet
  39. 39.True or false: table salt dissolves in water. (a) True (b) False
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it

Answer key

  1. False
  2. not needed
  3. True
  4. a comb
  5. False
  6. True
  7. does not dissolve
  8. dissolves in water
  9. a grown-up
  10. does not dissolve
  11. faster
  12. False
  13. we change it
  14. sugar in icy water
  15. needed
  16. faster
  17. False
  18. slower
  19. powdered sugar
  20. we keep it the same
  21. we keep it the same
  22. a clock or timer
  23. sawdust
  24. powdered sugar
  25. sugar in warm water
  26. True
  27. not needed
  28. cotton wool
  29. a solution
  30. honey
  31. False
  32. sugar
  33. chalk powder
  34. honey
  35. faster
  36. False
  37. it spread in the water
  38. particles move faster
  39. True
  40. we measure it

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