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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 656 · 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 in icy water dissolve faster or slower? (a) faster (b) slower
  2. 2.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
  3. 3.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar stirred well
  4. 4.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  5. 5.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a teaspoon (c) warm water (d) a clock or timer
  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 change it (c) we keep it the same
  7. 7.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) sugar (c) two clear glasses (d) cold water
  9. 9.True or false: sugar does not dissolve in water. (a) True (b) False
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
  11. 11.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
  13. 13.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) cold water (d) a mirror
  14. 14.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) sugar (d) small pebbles
  15. 15.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  16. 16.True or false: sugar stirred well dissolves faster. (a) True (b) False
  17. 17.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  18. 18.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sugar (d) sand
  19. 19.🔍 Which is the odd one out? (a) sand (b) table salt (c) food colour (d) glucose powder
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the water temperature (d) the kind of sugar
  21. 21.🔍 Which is the odd one out? (a) small pebbles (b) food colour (c) cooking oil (d) sawdust
  22. 22.⚖️ 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 change it (c) we keep it the same
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
  24. 24.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  25. 25.⚖️ 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
  26. 26.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
  27. 27.True or false: powdered sugar dissolves faster. (a) True (b) False
  28. 28.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
  30. 30.True or false: sugar dissolves in water. (a) False (b) True
  31. 31.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  32. 32.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) cooking oil (d) sugar
  33. 33.🥄 Which of these dissolves in water? (a) table salt (b) small pebbles (c) chalk powder (d) sawdust
  34. 34.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
  35. 35.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it floats up (d) it turns blue
  36. 36.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) warm water is thicker (d) particles move faster
  37. 37.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a magnet (d) warm water
  38. 38.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
  39. 39.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  40. 40.True or false: baking soda dissolves in water. (a) True (b) False

Answer key

  1. slower
  2. a grown-up
  3. sugar stirred well
  4. not needed
  5. a mirror
  6. we keep it the same
  7. needed
  8. a mirror
  9. False
  10. False
  11. does not dissolve
  12. we keep it the same
  13. cold water
  14. small pebbles
  15. False
  16. True
  17. does not dissolve
  18. sugar
  19. sand
  20. the water temperature
  21. food colour
  22. we measure it
  23. True
  24. False
  25. False
  26. False
  27. True
  28. needed
  29. False
  30. True
  31. needed
  32. sugar
  33. table salt
  34. look for leftover grains
  35. it settles at the bottom
  36. particles move faster
  37. warm water
  38. let the water evaporate
  39. False
  40. True

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