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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 210 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
  2. 2.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  3. 3.🥄 Which of these does not dissolve in water? (a) sawdust (b) glucose powder (c) table salt (d) food colour
  4. 4.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  5. 5.True or false: sugar in icy water dissolves faster. (a) True (b) False
  6. 6.⚖️ 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 keep it the same (c) we change it
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the water temperature (c) the stirring (d) time to dissolve
  8. 8.True or false: powdered sugar dissolves slower. (a) True (b) False
  9. 9.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  10. 10.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  11. 11.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a balloon (c) two clear glasses (d) a clock or timer
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
  14. 14.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) cold water (d) a magnet
  15. 15.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
  16. 16.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  17. 17.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
  18. 18.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) cold water (d) warm water
  20. 20.True or false: powdered sugar dissolves faster. (a) False (b) True
  21. 21.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) sand (d) glucose powder
  22. 22.True or false: sugar stirred well dissolves slower. (a) False (b) True
  23. 23.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  24. 24.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  26. 26.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  27. 27.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  28. 28.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) small pebbles (d) sawdust
  29. 29.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
  30. 30.🥄 Which of these dissolves in water? (a) chalk powder (b) table salt (c) cooking oil (d) sawdust
  31. 31.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet
  32. 32.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  33. 33.True or false: honey is needed for the dissolving test. (a) True (b) False
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a clock or timer (d) cotton wool
  35. 35.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
  36. 36.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  37. 37.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  38. 38.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  39. 39.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a balloon (c) cold water (d) two clear glasses
  40. 40.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them

Answer key

  1. we keep it the same
  2. needed
  3. sawdust
  4. faster
  5. False
  6. we keep it the same
  7. the water temperature
  8. False
  9. True
  10. True
  11. does not dissolve
  12. a balloon
  13. we keep it the same
  14. cold water
  15. sugar stirred well
  16. needed
  17. sugar left unstirred
  18. does not dissolve
  19. a magnet
  20. True
  21. sand
  22. False
  23. slower
  24. dissolves in water
  25. False
  26. slower
  27. faster
  28. glucose powder
  29. look for leftover grains
  30. table salt
  31. a solution
  32. slower
  33. False
  34. cotton wool
  35. let the water evaporate
  36. False
  37. not needed
  38. True
  39. a balloon
  40. powdered sugar

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