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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 381 · 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 sugar stirred well dissolve faster or slower? (a) slower (b) faster
  2. 2.True or false: honey is not needed for the dissolving test. (a) True (b) False
  3. 3.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) taste it (d) poke it with a finger
  4. 4.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) both the same (d) powdered sugar
  5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
  6. 6.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  7. 7.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  8. 8.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  9. 9.⚖️ 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) True (b) False
  10. 10.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  11. 11.⚖️ 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
  12. 12.🔍 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 vanished for ever (d) it became air
  13. 13.🛟 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
  14. 14.True or false: sugar in warm water dissolves slower. (a) True (b) False
  15. 15.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
  16. 16.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  17. 17.True or false: sugar stirred well dissolves slower. (a) False (b) True
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
  19. 19.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  20. 20.🥄 Which of these does not dissolve in water? (a) sugar (b) sand (c) baking soda (d) table salt
  21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) cold water (c) two clear glasses (d) warm water
  22. 22.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  23. 23.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) a magnet (d) a clock or timer
  24. 24.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  25. 25.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  26. 26.True or false: small pebbles dissolves in water. (a) False (b) True
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) time to dissolve (d) the amount of water
  28. 28.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar stirred well
  29. 29.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  30. 30.🔍 Which is the odd one out? (a) table salt (b) food colour (c) baking soda (d) small pebbles
  31. 31.True or false: powdered sugar dissolves faster. (a) False (b) True
  32. 32.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  33. 33.True or false: glucose powder does not dissolve in water. (a) False (b) True
  34. 34.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) a teaspoon (d) a clock or timer
  36. 36.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  37. 37.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) honey (d) two clear glasses
  38. 38.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  39. 39.True or false: food colour does not dissolve in water. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sawdust (d) table salt

Answer key

  1. faster
  2. True
  3. look for leftover grains
  4. powdered sugar
  5. faster
  6. False
  7. True
  8. dissolves in water
  9. True
  10. dissolves in water
  11. False
  12. it spread in the water
  13. a grown-up
  14. False
  15. particles move faster
  16. False
  17. False
  18. we keep it the same
  19. not needed
  20. sand
  21. a balloon
  22. does not dissolve
  23. a clock or timer
  24. dissolves in water
  25. needed
  26. False
  27. time to dissolve
  28. sugar stirred well
  29. does not dissolve
  30. small pebbles
  31. True
  32. does not dissolve
  33. False
  34. not needed
  35. a comb
  36. needed
  37. honey
  38. not needed
  39. False
  40. table salt

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