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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 985 · 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.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
  3. 3.True or false: powdered sugar dissolves slower. (a) True (b) False
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) time to dissolve (c) the water temperature (d) the kind of sugar
  5. 5.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  6. 6.🥄 Which of these does not dissolve in water? (a) sand (b) sugar (c) baking soda (d) table salt
  7. 7.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it floats up (d) it settles at the bottom
  9. 9.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a comb (c) cold water (d) a balloon
  10. 10.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
  12. 12.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  13. 13.⚖️ 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) True (b) False
  14. 14.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) sugar left unstirred (d) a big sugar cube
  15. 15.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
  16. 16.True or false: sugar stirred well dissolves faster. (a) False (b) True
  17. 17.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  18. 18.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) food colour (d) small pebbles
  19. 19.True or false: table salt does not dissolve in water. (a) True (b) False
  20. 20.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  21. 21.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  22. 22.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  23. 23.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
  24. 24.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.True or false: sugar in icy water dissolves faster. (a) False (b) True
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) sugar (d) a comb
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a comb (c) a clock or timer (d) two clear glasses
  28. 28.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) sand (d) food colour
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
  30. 30.⚖️ 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
  31. 31.True or false: table salt dissolves in water. (a) True (b) False
  32. 32.🔮 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
  33. 33.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  34. 34.True or false: cold water is needed for the dissolving test. (a) True (b) False
  35. 35.⚖️ 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 kind of sugar (c) the stirring (d) the amount of water
  36. 36.True or false: sugar does not dissolve in water. (a) True (b) False
  37. 37.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) slower (d) faster
  38. 38.⚖️ 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 measure it (c) we keep it the same
  39. 39.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a magnet (c) a teaspoon (d) two clear glasses

Answer key

  1. not needed
  2. False
  3. False
  4. time to dissolve
  5. slower
  6. sand
  7. dissolves in water
  8. it settles at the bottom
  9. cold water
  10. False
  11. we keep it the same
  12. does not dissolve
  13. False
  14. sugar stirred well
  15. look for leftover grains
  16. True
  17. slower
  18. food colour
  19. False
  20. needed
  21. not needed
  22. faster
  23. particles move faster
  24. dissolves in water
  25. False
  26. a comb
  27. a comb
  28. sand
  29. we keep it the same
  30. False
  31. True
  32. powdered sugar
  33. dissolves in water
  34. True
  35. the water temperature
  36. False
  37. faster
  38. we measure it
  39. False
  40. a magnet

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