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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 933 · 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 of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) powdered sugar (d) sugar stirred well
  2. 2.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  3. 3.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  4. 4.True or false: table salt dissolves in water. (a) True (b) False
  5. 5.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) powdered sugar (d) sugar stirred well
  6. 6.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) sugar (d) table salt
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) sugar (d) a clock or timer
  8. 8.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it vanished for ever (d) it became air
  9. 9.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) two clear glasses (c) sugar (d) a clock or timer
  10. 10.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  11. 11.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
  12. 12.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) table salt (d) sand
  13. 13.True or false: baking soda does not dissolve in water. (a) False (b) True
  14. 14.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
  16. 16.True or false: cooking oil dissolves in water. (a) False (b) True
  17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a teaspoon (c) a clock or timer (d) sugar
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
  19. 19.🥄 Which of these does not dissolve in water? (a) chalk powder (b) sugar (c) table salt (d) baking soda
  20. 20.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) cotton wool (d) cold water
  21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) honey (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) sugar (c) a magnet (d) a balloon
  24. 24.True or false: sugar does not dissolve in water. (a) False (b) True
  25. 25.True or false: sugar stirred well dissolves slower. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) chalk powder (d) sand
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  28. 28.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  29. 29.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the stirring (c) time to dissolve (d) the water temperature
  31. 31.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  32. 32.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
  34. 34.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  35. 35.True or false: sawdust does not dissolve in water. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) sawdust (b) sand (c) chalk powder (d) baking soda
  37. 37.⚖️ 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
  38. 38.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  39. 39.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  40. 40.⚖️ 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) True (b) False

Answer key

  1. sugar in icy water
  2. slower
  3. needed
  4. True
  5. a big sugar cube
  6. sawdust
  7. a comb
  8. it spread in the water
  9. a comb
  10. not needed
  11. look for leftover grains
  12. sand
  13. False
  14. faster
  15. we keep it the same
  16. False
  17. cotton wool
  18. True
  19. chalk powder
  20. cold water
  21. honey
  22. does not dissolve
  23. sugar
  24. False
  25. False
  26. sugar
  27. we keep it the same
  28. True
  29. needed
  30. time to dissolve
  31. faster
  32. not needed
  33. we keep it the same
  34. needed
  35. True
  36. baking soda
  37. True
  38. needed
  39. dissolves in water
  40. True

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