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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 545 · 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 is the odd one out? (a) cooking oil (b) table salt (c) sand (d) chalk powder
  2. 2.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) cooking oil (d) baking soda
  4. 4.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
  6. 6.True or false: cooking oil dissolves in water. (a) False (b) True
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) two clear glasses (d) cotton wool
  8. 8.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it became air (d) it vanished for ever
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
  10. 10.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of water (c) the stirring (d) the amount of sugar
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the stirring
  13. 13.⚖️ 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
  14. 14.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) glucose powder (d) small pebbles
  15. 15.⚖️ 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
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
  17. 17.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  18. 18.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  19. 19.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) table salt (d) sand
  20. 20.True or false: small pebbles does not dissolve in water. (a) False (b) True
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
  22. 22.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  23. 23.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
  24. 24.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  25. 25.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) sugar likes the dark (d) cold water is wet
  26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) a clock or timer (d) cold water
  27. 27.🥄 Which of these does not dissolve in water? (a) chalk powder (b) sugar (c) glucose powder (d) table salt
  28. 28.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
  31. 31.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) a balloon (d) sugar
  33. 33.True or false: a big sugar cube dissolves slower. (a) False (b) True
  34. 34.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a magnet (d) a solution
  35. 35.True or false: sawdust dissolves in water. (a) False (b) True
  36. 36.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  37. 37.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a mirror (c) warm water (d) cold water
  38. 38.🔍 Which is the odd one out? (a) table salt (b) sugar (c) food colour (d) sawdust
  39. 39.True or false: sugar does not dissolve in water. (a) True (b) False
  40. 40.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water

Answer key

  1. table salt
  2. dissolves in water
  3. cooking oil
  4. does not dissolve
  5. False
  6. False
  7. cotton wool
  8. it spread in the water
  9. False
  10. needed
  11. time to dissolve
  12. the stirring
  13. False
  14. small pebbles
  15. False
  16. we measure it
  17. slower
  18. not needed
  19. table salt
  20. True
  21. False
  22. not needed
  23. a grown-up
  24. True
  25. particles move faster
  26. honey
  27. chalk powder
  28. dissolves in water
  29. needed
  30. True
  31. False
  32. a balloon
  33. True
  34. a solution
  35. False
  36. does not dissolve
  37. a mirror
  38. sawdust
  39. False
  40. sugar in icy water

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