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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 452 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
  2. 2.True or false: a comb is needed for the dissolving test. (a) True (b) False
  3. 3.⚖️ 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
  4. 4.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) sugar (c) a teaspoon (d) two clear glasses
  6. 6.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  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 is the odd one out? (a) chalk powder (b) food colour (c) cooking oil (d) sand
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
  10. 10.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  11. 11.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  12. 12.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) two clear glasses (d) a comb
  13. 13.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  14. 14.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  15. 15.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) table salt (d) cooking oil
  16. 16.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
  17. 17.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  18. 18.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) food colour (d) sawdust
  19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) two clear glasses (d) honey
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a mirror (d) sugar
  21. 21.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  22. 22.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
  23. 23.True or false: sugar in warm water dissolves faster. (a) True (b) False
  24. 24.True or false: sawdust does not dissolve in water. (a) False (b) True
  25. 25.True or false: glucose powder dissolves in water. (a) False (b) True
  26. 26.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) the water turns solid (d) all of it dissolves
  27. 27.⚖️ 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
  28. 28.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) time to dissolve (c) the stirring (d) the water temperature
  31. 31.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  32. 32.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  33. 33.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  34. 34.True or false: baking soda does not dissolve in water. (a) True (b) False
  35. 35.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) two clear glasses (d) cotton wool
  36. 36.🥄 Which of these does not dissolve in water? (a) small pebbles (b) table salt (c) baking soda (d) sugar
  37. 37.True or false: sugar stirred well dissolves slower. (a) True (b) False
  38. 38.⚖️ 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
  39. 39.⚖️ 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
  40. 40.True or false: sugar is not needed for the dissolving test. (a) True (b) False

Answer key

  1. faster
  2. False
  3. False
  4. faster
  5. a balloon
  6. False
  7. True
  8. food colour
  9. we measure it
  10. does not dissolve
  11. dissolves in water
  12. two clear glasses
  13. dissolves in water
  14. needed
  15. cooking oil
  16. a grown-up
  17. True
  18. food colour
  19. honey
  20. a mirror
  21. slower
  22. look for leftover grains
  23. True
  24. True
  25. True
  26. some stays undissolved
  27. False
  28. dissolves in water
  29. faster
  30. the water temperature
  31. needed
  32. needed
  33. slower
  34. False
  35. cotton wool
  36. small pebbles
  37. False
  38. True
  39. False
  40. False

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