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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 411 · 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 of these does not dissolve in water? (a) sawdust (b) baking soda (c) table salt (d) food colour
  2. 2.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
  5. 5.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  6. 6.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  7. 7.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) sugar (d) cooking oil
  8. 8.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
  9. 9.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar left unstirred
  10. 10.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) sand (d) glucose powder
  11. 11.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  12. 12.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
  13. 13.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  14. 14.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) warm water (c) two clear glasses (d) a clock or timer
  15. 15.True or false: food colour dissolves in water. (a) True (b) False
  16. 16.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  17. 17.⚖️ 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) True (b) False
  18. 18.True or false: small pebbles dissolves in water. (a) False (b) True
  19. 19.🥄 Which of these dissolves faster? (a) sugar in warm water (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
  20. 20.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  21. 21.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a magnet (d) warm water
  22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cotton wool (c) a teaspoon (d) two clear glasses
  23. 23.True or false: glucose powder dissolves in water. (a) True (b) False
  24. 24.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) baking soda (d) sand
  26. 26.True or false: chalk powder dissolves in water. (a) True (b) False
  27. 27.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
  28. 28.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  29. 29.True or false: a mirror is needed for the dissolving test. (a) False (b) True
  30. 30.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
  31. 31.True or false: sugar stirred well dissolves slower. (a) True (b) False
  32. 32.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) powdered sugar
  33. 33.⚖️ 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
  34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
  35. 35.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) glucose powder (d) sawdust
  36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a magnet (d) a teaspoon
  37. 37.True or false: a comb is needed for the dissolving test. (a) False (b) True
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
  39. 39.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  40. 40.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved

Answer key

  1. sawdust
  2. dissolves in water
  3. False
  4. False
  5. False
  6. slower
  7. sugar
  8. sugar in icy water
  9. sugar left unstirred
  10. glucose powder
  11. does not dissolve
  12. look for leftover grains
  13. slower
  14. a comb
  15. True
  16. faster
  17. True
  18. False
  19. sugar in warm water
  20. needed
  21. warm water
  22. cotton wool
  23. True
  24. False
  25. baking soda
  26. False
  27. a grown-up
  28. needed
  29. False
  30. faster
  31. False
  32. powdered sugar
  33. we change it
  34. we keep it the same
  35. glucose powder
  36. a magnet
  37. False
  38. we keep it the same
  39. not needed
  40. some stays undissolved

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