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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 807 · 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.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  2. 2.True or false: sawdust does not dissolve in water. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) chalk powder (b) food colour (c) sand (d) cooking oil
  4. 4.True or false: a comb is not needed for the dissolving test. (a) False (b) True
  5. 5.🥄 Which of these does not dissolve in water? (a) sugar (b) cooking oil (c) glucose powder (d) baking soda
  6. 6.True or false: sugar in icy water dissolves slower. (a) False (b) True
  7. 7.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
  9. 9.🥄 Which of these does not dissolve in water? (a) small pebbles (b) food colour (c) sugar (d) baking soda
  10. 10.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
  11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) sugar (d) a magnet
  12. 12.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
  13. 13.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  14. 14.⚖️ 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
  15. 15.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) warm water (d) honey
  16. 16.🥄 Which of these dissolves in water? (a) small pebbles (b) table salt (c) sawdust (d) cooking oil
  17. 17.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) a magnet (c) a comb (d) a mirror
  18. 18.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
  19. 19.True or false: powdered sugar dissolves slower. (a) False (b) True
  20. 20.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar left unstirred (d) sugar in warm water
  21. 21.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) sugar (c) a comb (d) honey
  22. 22.🔍 Which is the odd one out? (a) food colour (b) sugar (c) sawdust (d) baking soda
  23. 23.⚖️ 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
  24. 24.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
  25. 25.True or false: sand dissolves in water. (a) True (b) False
  26. 26.True or false: sugar stirred well dissolves faster. (a) True (b) False
  27. 27.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) sugar (d) a magnet
  28. 28.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) sugar (d) food colour
  29. 29.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) glucose powder (d) sand
  30. 30.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  31. 31.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  32. 32.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  35. 35.⚖️ 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 keep it the same (c) we change it
  36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
  38. 38.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a teaspoon (d) a mirror
  40. 40.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed

Answer key

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

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