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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 761 · 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 mirror for the dissolving test? (a) not needed (b) needed
  2. 2.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
  3. 3.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) stir it more (d) keep it in a fridge
  4. 4.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
  5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) time to dissolve (c) the kind of sugar (d) the amount of water
  6. 6.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a comb (d) warm water
  8. 8.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  9. 9.True or false: cold water is needed for the dissolving test. (a) False (b) True
  10. 10.⚖️ 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 keep it the same (c) we change it
  11. 11.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) sugar (d) small pebbles
  12. 12.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) chalk powder (d) glucose powder
  13. 13.🔍 Which is the odd one out? (a) table salt (b) sugar (c) glucose powder (d) sawdust
  14. 14.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) a mirror (d) warm water
  15. 15.⚖️ 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 amount of sugar
  16. 16.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  17. 17.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
  18. 18.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) a big sugar cube (d) sugar in icy water
  19. 19.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) sugar (c) cold water (d) a clock or timer
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the amount of sugar (c) the water temperature (d) time to dissolve
  23. 23.True or false: sugar in icy water dissolves faster. (a) False (b) True
  24. 24.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  25. 25.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  26. 26.🥄 Which of these dissolves in water? (a) cooking oil (b) sugar (c) sawdust (d) chalk powder
  27. 27.True or false: sand dissolves in water. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) table salt (b) sugar (c) food colour (d) small pebbles
  29. 29.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  30. 30.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) cold water (d) cotton wool
  32. 32.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) sugar (c) cold water (d) a teaspoon
  34. 34.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a mirror (c) two clear glasses (d) sugar
  35. 35.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  36. 36.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  37. 37.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) a big sugar cube
  38. 38.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  39. 39.True or false: sugar is needed for the dissolving test. (a) True (b) False
  40. 40.🥄 Which of these does not dissolve in water? (a) sand (b) sugar (c) baking soda (d) food colour

Answer key

  1. not needed
  2. sugar stirred well
  3. let the water evaporate
  4. look for leftover grains
  5. time to dissolve
  6. faster
  7. a comb
  8. True
  9. True
  10. we keep it the same
  11. sugar
  12. chalk powder
  13. sawdust
  14. warm water
  15. the amount of sugar
  16. True
  17. particles move faster
  18. powdered sugar
  19. False
  20. a balloon
  21. we keep it the same
  22. the water temperature
  23. False
  24. needed
  25. dissolves in water
  26. sugar
  27. False
  28. small pebbles
  29. not needed
  30. False
  31. cotton wool
  32. faster
  33. a magnet
  34. a mirror
  35. False
  36. needed
  37. a big sugar cube
  38. does not dissolve
  39. True
  40. sand

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