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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 208 · 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.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it became air (d) it sank as sand
  2. 2.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  3. 3.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  4. 4.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  5. 5.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) sugar (d) honey
  6. 6.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) cooking oil (d) small pebbles
  7. 7.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
  8. 8.🧺 Which of these is needed for the dissolving test? (a) a comb (b) two clear glasses (c) a mirror (d) a balloon
  9. 9.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
  10. 10.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar left unstirred (d) sugar stirred well
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
  12. 12.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) powdered sugar
  13. 13.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  14. 14.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  15. 15.True or false: a comb is needed for the dissolving test. (a) False (b) True
  16. 16.⚖️ 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
  17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) a magnet (d) a teaspoon
  18. 18.True or false: cooking oil does not dissolve in water. (a) True (b) False
  19. 19.⚖️ 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
  20. 20.🔍 Which is the odd one out? (a) food colour (b) sand (c) sugar (d) baking soda
  21. 21.True or false: small pebbles does not dissolve in water. (a) False (b) True
  22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
  23. 23.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) chalk powder (d) sugar
  24. 24.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) table salt (d) sawdust
  25. 25.True or false: sand does not dissolve in water. (a) True (b) False
  26. 26.True or false: sugar in warm water dissolves slower. (a) False (b) True
  27. 27.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of water (c) the stirring (d) the amount of sugar
  29. 29.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
  30. 30.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  31. 31.True or false: sugar does not dissolve in water. (a) True (b) False
  32. 32.🥄 Which of these does not dissolve in water? (a) sugar (b) sand (c) table salt (d) food colour
  33. 33.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
  34. 34.🥄 Which of these dissolves in water? (a) table salt (b) cooking oil (c) chalk powder (d) sawdust
  35. 35.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  37. 37.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  39. 39.True or false: a magnet is needed for the dissolving test. (a) False (b) True
  40. 40.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster

Answer key

  1. it spread in the water
  2. not needed
  3. not needed
  4. needed
  5. honey
  6. baking soda
  7. a grown-up
  8. two clear glasses
  9. look for leftover grains
  10. sugar left unstirred
  11. we measure it
  12. powdered sugar
  13. faster
  14. dissolves in water
  15. False
  16. False
  17. a magnet
  18. True
  19. the stirring
  20. sand
  21. True
  22. powdered sugar
  23. sugar
  24. sawdust
  25. True
  26. False
  27. False
  28. the water temperature
  29. it settles at the bottom
  30. does not dissolve
  31. False
  32. sand
  33. True
  34. table salt
  35. True
  36. needed
  37. False
  38. True
  39. False
  40. slower

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