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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 215 · 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.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) taste it (d) poke it with a finger
  2. 2.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
  3. 3.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a mirror (c) two clear glasses (d) a teaspoon
  5. 5.⚖️ 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
  6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a balloon (c) two clear glasses (d) a clock or timer
  7. 7.True or false: sugar dissolves in water. (a) False (b) True
  8. 8.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
  9. 9.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  10. 10.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  11. 11.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a crystal (d) a rainbow
  12. 12.True or false: sawdust does not dissolve in water. (a) False (b) True
  13. 13.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  14. 14.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
  16. 16.True or false: a big sugar cube dissolves faster. (a) False (b) True
  17. 17.🥄 Which of these does not dissolve in water? (a) baking soda (b) sand (c) table salt (d) glucose powder
  18. 18.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) cotton wool (d) cold water
  20. 20.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) a comb (d) sugar
  22. 22.⚖️ 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
  23. 23.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a magnet (c) a balloon (d) a comb
  24. 24.True or false: food colour does not dissolve in water. (a) False (b) True
  25. 25.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  26. 26.⚖️ 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
  27. 27.🥄 Which of these dissolves in water? (a) cooking oil (b) glucose powder (c) sawdust (d) sand
  28. 28.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  29. 29.True or false: sugar stirred well dissolves slower. (a) False (b) True
  30. 30.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) a teaspoon (d) honey
  32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a teaspoon (c) two clear glasses (d) a clock or timer
  33. 33.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  34. 34.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it turns blue (d) it floats up
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
  36. 36.True or false: sugar in icy water dissolves faster. (a) False (b) True
  37. 37.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  38. 38.True or false: honey is needed for the dissolving test. (a) False (b) True
  39. 39.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) some stays undissolved (d) the water turns solid
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False

Answer key

  1. look for leftover grains
  2. powdered sugar
  3. False
  4. a mirror
  5. we keep it the same
  6. a balloon
  7. True
  8. particles move faster
  9. False
  10. not needed
  11. a solution
  12. True
  13. needed
  14. does not dissolve
  15. the kind of sugar
  16. False
  17. sand
  18. False
  19. cotton wool
  20. does not dissolve
  21. a comb
  22. False
  23. warm water
  24. False
  25. slower
  26. we change it
  27. glucose powder
  28. dissolves in water
  29. False
  30. dissolves in water
  31. honey
  32. a magnet
  33. needed
  34. it settles at the bottom
  35. True
  36. False
  37. not needed
  38. False
  39. some stays undissolved
  40. False

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