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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 836 · 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 faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar in warm water (d) a big sugar cube
  2. 2.⚖️ 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 keep it the same (c) we measure it
  3. 3.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  4. 4.True or false: food colour dissolves in water. (a) True (b) False
  5. 5.⚖️ 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) the stirring (c) the amount of sugar (d) time to dissolve
  6. 6.🔍 Which is the odd one out? (a) glucose powder (b) chalk powder (c) food colour (d) table salt
  7. 7.True or false: sugar stirred well dissolves faster. (a) True (b) False
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) warm water (c) a teaspoon (d) cold water
  9. 9.True or false: food colour does not dissolve in water. (a) False (b) True
  10. 10.🧺 Which of these is needed for the dissolving test? (a) sugar (b) honey (c) a mirror (d) a comb
  11. 11.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the stirring (c) time to dissolve
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a magnet (c) two clear glasses (d) a teaspoon
  15. 15.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  16. 16.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
  17. 17.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  18. 18.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  19. 19.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) cold water (d) a clock or timer
  21. 21.True or false: a comb is needed for the dissolving test. (a) True (b) False
  22. 22.True or false: sugar does not dissolve in water. (a) True (b) False
  23. 23.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a comb (c) honey (d) a mirror
  24. 24.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  25. 25.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) a magnet (d) a teaspoon
  26. 26.🛟 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
  27. 27.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  28. 28.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) sand (d) glucose powder
  29. 29.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  30. 30.🥄 Which of these dissolves in water? (a) sawdust (b) table salt (c) sand (d) chalk powder
  31. 31.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  32. 32.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  33. 33.True or false: cold water is needed for the dissolving test. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) food colour (b) table salt (c) glucose powder (d) sand
  35. 35.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) warm water (d) a mirror
  36. 36.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) stir it more (d) keep it in a fridge
  37. 37.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  38. 38.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) cold water (c) a clock or timer (d) two clear glasses
  40. 40.⚖️ 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 keep it the same (c) we measure it

Answer key

  1. sugar in warm water
  2. we keep it the same
  3. slower
  4. True
  5. time to dissolve
  6. chalk powder
  7. True
  8. a balloon
  9. False
  10. sugar
  11. not needed
  12. the stirring
  13. True
  14. a magnet
  15. needed
  16. a grown-up
  17. True
  18. dissolves in water
  19. not needed
  20. a comb
  21. False
  22. False
  23. two clear glasses
  24. needed
  25. a magnet
  26. look for leftover grains
  27. False
  28. sand
  29. False
  30. table salt
  31. False
  32. True
  33. True
  34. sand
  35. a mirror
  36. let the water evaporate
  37. does not dissolve
  38. needed
  39. cotton wool
  40. we keep it the same

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