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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 838 · 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: sugar does not dissolve in water. (a) True (b) False
  3. 3.🥄 Which of these does not dissolve in water? (a) small pebbles (b) table salt (c) baking soda (d) food colour
  4. 4.True or false: sugar in icy water dissolves faster. (a) False (b) True
  5. 5.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  6. 6.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  7. 7.⚖️ 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
  8. 8.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) a comb (d) sugar
  9. 9.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  10. 10.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
  11. 11.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) sugar (d) chalk powder
  12. 12.⚖️ 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
  13. 13.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  14. 14.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
  15. 15.True or false: a big sugar cube dissolves faster. (a) True (b) False
  16. 16.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  17. 17.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
  18. 18.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a comb (c) a teaspoon (d) cold water
  19. 19.⚖️ 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
  20. 20.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) glucose powder (d) sand
  21. 21.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  22. 22.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  23. 23.True or false: table salt does not dissolve in water. (a) True (b) False
  24. 24.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) two clear glasses (d) honey
  25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) warm water (d) a teaspoon
  27. 27.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) cooking oil (d) baking soda
  28. 28.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
  29. 29.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) powdered sugar
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  31. 31.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) cold water (d) sugar
  33. 33.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  34. 34.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  35. 35.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) cold water (d) a mirror
  36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) warm water (d) cold water
  38. 38.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) keep it in a fridge (d) let the water evaporate
  39. 39.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) time to dissolve (c) the amount of water (d) the amount of sugar

Answer key

  1. faster
  2. False
  3. small pebbles
  4. False
  5. True
  6. not needed
  7. False
  8. sugar
  9. True
  10. sugar in warm water
  11. sugar
  12. we keep it the same
  13. does not dissolve
  14. a grown-up
  15. False
  16. needed
  17. look for leftover grains
  18. a comb
  19. False
  20. sand
  21. dissolves in water
  22. False
  23. False
  24. honey
  25. True
  26. cotton wool
  27. cooking oil
  28. sugar stirred well
  29. powdered sugar
  30. we keep it the same
  31. needed
  32. a magnet
  33. not needed
  34. slower
  35. cold water
  36. True
  37. honey
  38. let the water evaporate
  39. faster
  40. time to dissolve

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