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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 826 · 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? Which of these is what we measure? (a) the kind of sugar (b) the amount of sugar (c) the stirring (d) time to dissolve
  2. 2.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  3. 3.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  4. 4.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  5. 5.True or false: baking soda dissolves in water. (a) True (b) False
  6. 6.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  7. 7.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  8. 8.True or false: a big sugar cube dissolves slower. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) table salt (d) small pebbles
  10. 10.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  12. 12.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) glucose powder (d) small pebbles
  13. 13.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  14. 14.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
  16. 16.True or false: glucose powder does not dissolve in water. (a) True (b) False
  17. 17.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
  18. 18.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
  19. 19.True or false: glucose powder dissolves in water. (a) False (b) True
  20. 20.⚖️ 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
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
  22. 22.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) sugar left unstirred (d) a big sugar cube
  23. 23.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) a mirror (d) a balloon
  24. 24.🥄 Which of these does not dissolve in water? (a) baking soda (b) cooking oil (c) sugar (d) food colour
  25. 25.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
  26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) warm water (c) a clock or timer (d) sugar
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a magnet (c) warm water (d) two clear glasses
  28. 28.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  29. 29.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  30. 30.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sugar (d) sawdust
  31. 31.🔍 Which is the odd one out? (a) small pebbles (b) food colour (c) sawdust (d) sand
  32. 32.🔍 Which is the odd one out? (a) table salt (b) sugar (c) sawdust (d) glucose powder
  33. 33.True or false: sawdust dissolves in water. (a) False (b) True
  34. 34.🔍 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
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
  36. 36.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) sugar (c) a magnet (d) a mirror
  37. 37.⚖️ 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) time to dissolve (c) the stirring
  38. 38.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) small pebbles (d) food colour
  39. 39.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) particles move faster (d) cold water is wet
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True

Answer key

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

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