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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 737 · 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 a big sugar cube dissolve faster or slower? (a) faster (b) slower
  2. 2.True or false: sugar stirred well dissolves slower. (a) True (b) False
  3. 3.⚖️ 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 measure it (c) we change it
  4. 4.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a teaspoon (d) cotton wool
  6. 6.⚖️ 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
  7. 7.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) cotton wool (d) sugar
  8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  9. 9.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
  10. 10.True or false: table salt dissolves in water. (a) True (b) False
  11. 11.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) sugar left unstirred (d) a big sugar cube
  12. 12.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  13. 13.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  14. 14.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  15. 15.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
  17. 17.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) stir it more (d) let the water evaporate
  18. 18.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  19. 19.🧺 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
  20. 20.🛟 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
  21. 21.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) sawdust (d) sugar
  22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) sugar (d) a magnet
  23. 23.⚖️ 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 keep it the same (c) we change it
  24. 24.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it turns blue (d) it settles at the bottom
  25. 25.⚖️ 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
  26. 26.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) sand (d) food colour
  27. 27.True or false: small pebbles dissolves in water. (a) False (b) True
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
  29. 29.🥄 Which of these dissolves in water? (a) cooking oil (b) glucose powder (c) chalk powder (d) sand
  30. 30.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  31. 31.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) baking soda (d) small pebbles
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  33. 33.True or false: baking soda does not dissolve in water. (a) False (b) True
  34. 34.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  35. 35.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  37. 37.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  38. 38.True or false: a big sugar cube dissolves slower. (a) False (b) True
  39. 39.True or false: sawdust dissolves in water. (a) True (b) False
  40. 40.True or false: honey is needed for the dissolving test. (a) True (b) False

Answer key

  1. slower
  2. False
  3. we keep it the same
  4. faster
  5. cotton wool
  6. False
  7. sugar
  8. we keep it the same
  9. sugar left unstirred
  10. True
  11. sugar in warm water
  12. False
  13. faster
  14. needed
  15. slower
  16. we keep it the same
  17. let the water evaporate
  18. not needed
  19. a balloon
  20. look for leftover grains
  21. sawdust
  22. a magnet
  23. we measure it
  24. it settles at the bottom
  25. we change it
  26. food colour
  27. False
  28. False
  29. glucose powder
  30. does not dissolve
  31. small pebbles
  32. True
  33. False
  34. not needed
  35. dissolves in water
  36. needed
  37. True
  38. True
  39. False
  40. False

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