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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 886 · 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.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  2. 2.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
  3. 3.True or false: cooking oil does not dissolve in water. (a) True (b) False
  4. 4.True or false: a big sugar cube dissolves faster. (a) False (b) True
  5. 5.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  6. 6.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  7. 7.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
  8. 8.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
  9. 9.True or false: food colour dissolves in water. (a) True (b) False
  10. 10.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  11. 11.⚖️ 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
  12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) time to dissolve (c) the amount of sugar (d) the kind of sugar
  14. 14.🛟 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
  15. 15.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  16. 16.🧺 Which of these is needed for the dissolving test? (a) warm water (b) honey (c) a balloon (d) cotton wool
  17. 17.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  18. 18.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  19. 19.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) food colour (d) small pebbles
  20. 20.⚖️ 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
  21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) a teaspoon (c) cold water (d) sugar
  22. 22.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a teaspoon (c) a mirror (d) a comb
  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.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) honey (d) cold water
  25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a clock or timer (c) cold water (d) a teaspoon
  27. 27.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  28. 28.True or false: powdered sugar dissolves faster. (a) True (b) False
  29. 29.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  30. 30.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  31. 31.⚖️ 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
  32. 32.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) table salt (d) baking soda
  33. 33.True or false: sugar in icy water dissolves faster. (a) True (b) False
  34. 34.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) powdered sugar
  35. 35.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it vanished for ever (d) it sank as sand
  36. 36.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
  37. 37.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) small pebbles (d) cooking oil
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  39. 39.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  40. 40.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water

Answer key

  1. dissolves in water
  2. sugar left unstirred
  3. True
  4. False
  5. faster
  6. True
  7. powdered sugar
  8. look for leftover grains
  9. True
  10. not needed
  11. the water temperature
  12. it settles at the bottom
  13. time to dissolve
  14. a grown-up
  15. True
  16. warm water
  17. needed
  18. does not dissolve
  19. food colour
  20. False
  21. a comb
  22. a teaspoon
  23. False
  24. cold water
  25. True
  26. a comb
  27. needed
  28. True
  29. needed
  30. dissolves in water
  31. False
  32. cooking oil
  33. False
  34. powdered sugar
  35. it spread in the water
  36. faster
  37. table salt
  38. we keep it the same
  39. False
  40. does not dissolve

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