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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 601 · 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.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  2. 2.True or false: small pebbles does not dissolve in water. (a) False (b) True
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
  5. 5.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
  6. 6.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) sawdust (d) sugar
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  8. 8.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) chalk powder (d) baking soda
  9. 9.⚖️ 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 kind of sugar (c) the amount of water (d) time to dissolve
  10. 10.🥄 Which of these does not dissolve in water? (a) food colour (b) sand (c) baking soda (d) table salt
  11. 11.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  12. 12.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  13. 13.🥄 Which of these does not dissolve in water? (a) baking soda (b) chalk powder (c) table salt (d) glucose powder
  14. 14.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  15. 15.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
  16. 16.⚖️ 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 water temperature (c) the stirring (d) the amount of sugar
  17. 17.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) sawdust (d) baking soda
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
  19. 19.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
  20. 20.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a magnet (d) a crystal
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
  22. 22.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  23. 23.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
  25. 25.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  26. 26.True or false: sugar dissolves in water. (a) False (b) True
  27. 27.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sand (d) sugar
  28. 28.True or false: sawdust does not dissolve in water. (a) False (b) True
  29. 29.True or false: table salt does not dissolve in water. (a) True (b) False
  30. 30.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  31. 31.⚖️ 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 keep it the same (c) we measure it
  32. 32.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) a teaspoon (d) a balloon
  33. 33.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  34. 34.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it vanished for ever (d) it spread in the water
  35. 35.True or false: honey is not needed for the dissolving test. (a) False (b) True
  36. 36.🥄 Which of these dissolves in water? (a) cooking oil (b) food colour (c) chalk powder (d) sand
  37. 37.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
  39. 39.True or false: sugar stirred well dissolves slower. (a) False (b) True
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a clock or timer (d) honey

Answer key

  1. faster
  2. True
  3. we change it
  4. we keep it the same
  5. a grown-up
  6. sawdust
  7. True
  8. baking soda
  9. time to dissolve
  10. sand
  11. False
  12. not needed
  13. chalk powder
  14. does not dissolve
  15. look for leftover grains
  16. the water temperature
  17. sawdust
  18. True
  19. faster
  20. a solution
  21. we keep it the same
  22. needed
  23. does not dissolve
  24. False
  25. True
  26. True
  27. sugar
  28. True
  29. False
  30. needed
  31. we keep it the same
  32. a teaspoon
  33. slower
  34. it spread in the water
  35. True
  36. food colour
  37. needed
  38. False
  39. False
  40. honey

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