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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 680 · 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: cotton wool is not needed for the dissolving test. (a) True (b) False
  3. 3.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) chalk powder (d) small pebbles
  4. 4.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  5. 5.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
  6. 6.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) honey (d) a teaspoon
  7. 7.⚖️ 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 change it (c) we keep it the same
  8. 8.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  9. 9.True or false: sugar in icy water dissolves faster. (a) False (b) True
  10. 10.True or false: powdered sugar dissolves slower. (a) False (b) True
  11. 11.⚖️ 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) the amount of water (d) time to dissolve
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
  13. 13.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
  14. 14.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) honey (c) a balloon (d) cotton wool
  15. 15.True or false: a big sugar cube dissolves faster. (a) True (b) False
  16. 16.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  17. 17.True or false: table salt dissolves in water. (a) True (b) False
  18. 18.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) cotton wool (d) a clock or timer
  19. 19.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  20. 20.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a clock or timer (d) a magnet
  22. 22.🔍 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
  23. 23.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  24. 24.True or false: sugar does not dissolve in water. (a) False (b) True
  25. 25.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) glucose powder (d) sawdust
  26. 26.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) table salt (d) sand
  27. 27.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  28. 28.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) warm water (d) a balloon
  29. 29.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  30. 30.🥄 Which of these dissolves in water? (a) food colour (b) sand (c) cooking oil (d) chalk powder
  31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the stirring (c) time to dissolve (d) the water temperature
  32. 32.True or false: sugar in icy water dissolves slower. (a) False (b) True
  33. 33.True or false: food colour does not dissolve in water. (a) True (b) False
  34. 34.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) small pebbles (d) sugar
  35. 35.🔮 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
  36. 36.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the stirring
  38. 38.⚖️ 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
  39. 39.True or false: sugar dissolves in water. (a) True (b) False
  40. 40.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed

Answer key

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

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