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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 579 · 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.True or false: sugar does not dissolve in water. (a) False (b) True
  2. 2.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  3. 3.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) stir it more (c) keep it in a fridge (d) add more water
  4. 4.⚖️ 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 change it (c) we keep it the same
  5. 5.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) sawdust (d) food colour
  6. 6.True or false: cold water is needed for the dissolving test. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) sawdust (d) table salt
  8. 8.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) glucose powder (d) chalk powder
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
  10. 10.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  11. 11.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the stirring (c) the water temperature (d) the kind of sugar
  13. 13.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
  15. 15.True or false: baking soda does not dissolve in water. (a) True (b) False
  16. 16.🧺 Which of these is needed for the dissolving test? (a) honey (b) a clock or timer (c) cotton wool (d) a magnet
  17. 17.True or false: sawdust does not dissolve in water. (a) True (b) False
  18. 18.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  19. 19.⚖️ 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
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) a comb (d) cold water
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
  22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
  23. 23.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  24. 24.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  25. 25.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  26. 26.True or false: table salt does not dissolve in water. (a) True (b) False
  27. 27.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) sugar (c) warm water (d) cotton wool
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a balloon (c) warm water (d) sugar
  29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a clock or timer (c) cold water (d) two clear glasses
  30. 30.🔍 Which is the odd one out? (a) food colour (b) sugar (c) table salt (d) sawdust
  31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
  32. 32.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  34. 34.🛟 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
  35. 35.⚖️ 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
  36. 36.🥄 Which of these dissolves in water? (a) food colour (b) sawdust (c) cooking oil (d) chalk powder
  37. 37.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  38. 38.True or false: glucose powder dissolves in water. (a) True (b) False
  39. 39.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  40. 40.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet

Answer key

  1. False
  2. slower
  3. let the water evaporate
  4. we keep it the same
  5. sawdust
  6. True
  7. table salt
  8. chalk powder
  9. False
  10. False
  11. does not dissolve
  12. the water temperature
  13. needed
  14. False
  15. False
  16. a clock or timer
  17. True
  18. dissolves in water
  19. we keep it the same
  20. a comb
  21. True
  22. powdered sugar
  23. does not dissolve
  24. slower
  25. True
  26. False
  27. cotton wool
  28. a balloon
  29. a magnet
  30. sawdust
  31. we change it
  32. dissolves in water
  33. False
  34. look for leftover grains
  35. we measure it
  36. food colour
  37. does not dissolve
  38. True
  39. faster
  40. particles move faster

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