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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 55 · 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.⚖️ 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
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
  3. 3.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  4. 4.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  5. 5.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a teaspoon (c) a magnet (d) a mirror
  6. 6.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  7. 7.True or false: sugar in warm water dissolves faster. (a) False (b) True
  8. 8.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) a clock or timer (d) a comb
  9. 9.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a comb (c) a balloon (d) cotton wool
  10. 10.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) powdered sugar (d) sugar in icy water
  11. 11.True or false: honey is needed for the dissolving test. (a) False (b) True
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) a magnet (d) two clear glasses
  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) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
  14. 14.True or false: table salt does not dissolve in water. (a) False (b) True
  15. 15.True or false: powdered sugar dissolves faster. (a) False (b) True
  16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) a balloon (d) warm water
  17. 17.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) a mirror (d) two clear glasses
  18. 18.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) honey (c) a clock or timer (d) sugar
  19. 19.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) honey (c) cold water (d) sugar
  21. 21.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) cooking oil (d) glucose powder
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
  24. 24.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  25. 25.True or false: food colour dissolves in water. (a) True (b) False
  26. 26.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) time to dissolve (c) the amount of sugar (d) the stirring
  28. 28.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well
  29. 29.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
  30. 30.🥄 Which of these does not dissolve in water? (a) baking soda (b) sand (c) sugar (d) glucose powder
  31. 31.True or false: cooking oil does not dissolve in water. (a) False (b) True
  32. 32.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  34. 34.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  35. 35.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) food colour (d) table salt
  36. 36.🧺 Do we need a comb 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 water temperature is kept the same. (a) True (b) False
  38. 38.⚖️ 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 keep it the same (c) we change it
  39. 39.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  40. 40.True or false: cold water is needed for the dissolving test. (a) False (b) True

Answer key

  1. we change it
  2. True
  3. does not dissolve
  4. not needed
  5. a teaspoon
  6. True
  7. True
  8. a comb
  9. sugar
  10. powdered sugar
  11. False
  12. a magnet
  13. some stays undissolved
  14. False
  15. True
  16. a balloon
  17. two clear glasses
  18. honey
  19. a grown-up
  20. honey
  21. False
  22. glucose powder
  23. False
  24. does not dissolve
  25. True
  26. faster
  27. time to dissolve
  28. sugar left unstirred
  29. powdered sugar
  30. sand
  31. True
  32. does not dissolve
  33. not needed
  34. needed
  35. chalk powder
  36. not needed
  37. False
  38. we keep it the same
  39. True
  40. True

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