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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 172 · 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: a clock or timer is needed for the dissolving test. (a) True (b) False
  2. 2.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
  3. 3.True or false: sugar in warm water dissolves faster. (a) True (b) False
  4. 4.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
  5. 5.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  6. 6.True or false: sawdust does not dissolve in water. (a) False (b) True
  7. 7.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  8. 8.⚖️ 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
  9. 9.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
  10. 10.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
  11. 11.True or false: cooking oil dissolves in water. (a) False (b) True
  12. 12.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) sugar in warm water (d) powdered sugar
  13. 13.True or false: sugar does not dissolve in water. (a) False (b) True
  14. 14.🥄 Which of these dissolves faster? (a) sugar in warm water (b) a big sugar cube (c) sugar in icy water (d) sugar left unstirred
  15. 15.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  16. 16.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a magnet (c) a teaspoon (d) warm water
  17. 17.True or false: sawdust dissolves in water. (a) False (b) True
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) warm water (d) a magnet
  19. 19.⚖️ 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) True (b) False
  20. 20.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
  21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it sank as sand (d) it vanished for ever
  22. 22.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) sawdust (d) baking soda
  24. 24.⚖️ 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
  25. 25.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) stir it more (d) add more water
  26. 26.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a balloon (d) a clock or timer
  28. 28.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  29. 29.True or false: sugar stirred well dissolves faster. (a) False (b) True
  30. 30.🥄 Which of these does not dissolve in water? (a) cooking oil (b) glucose powder (c) food colour (d) table salt
  31. 31.⚖️ 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
  32. 32.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) a magnet (d) cotton wool
  33. 33.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  34. 34.⚖️ 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
  35. 35.⚖️ 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
  36. 36.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) sand (d) food colour
  37. 37.True or false: sugar stirred well dissolves slower. (a) False (b) True
  38. 38.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  39. 39.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) glucose powder (d) food colour
  40. 40.⚖️ 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

Answer key

  1. True
  2. a grown-up
  3. True
  4. powdered sugar
  5. dissolves in water
  6. True
  7. False
  8. we keep it the same
  9. sugar in icy water
  10. faster
  11. False
  12. sugar left unstirred
  13. False
  14. sugar in warm water
  15. faster
  16. a magnet
  17. False
  18. a magnet
  19. True
  20. powdered sugar
  21. it spread in the water
  22. False
  23. baking soda
  24. False
  25. let the water evaporate
  26. particles move faster
  27. a balloon
  28. needed
  29. True
  30. cooking oil
  31. we keep it the same
  32. sugar
  33. needed
  34. False
  35. False
  36. sand
  37. False
  38. dissolves in water
  39. sawdust
  40. True

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