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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 588 · 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.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) food colour (d) small pebbles
  2. 2.True or false: baking soda dissolves in water. (a) False (b) True
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of sugar (c) the stirring (d) the amount of water
  4. 4.True or false: powdered sugar dissolves faster. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) glucose powder (d) baking soda
  6. 6.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the amount of water (c) the amount of sugar (d) time to dissolve
  8. 8.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) cold water (c) a mirror (d) honey
  9. 9.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) a big sugar cube (d) sugar left unstirred
  10. 10.🥄 Which of these dissolves in water? (a) cooking oil (b) glucose powder (c) small pebbles (d) sand
  11. 11.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) food colour (d) table salt
  12. 12.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  13. 13.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
  14. 14.⚖️ 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
  15. 15.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  16. 16.⚖️ 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
  17. 17.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the amount of sugar (c) time to dissolve
  19. 19.True or false: sugar stirred well dissolves faster. (a) False (b) True
  20. 20.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) two clear glasses (c) a teaspoon (d) a clock or timer
  22. 22.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  23. 23.True or false: sugar stirred well dissolves slower. (a) False (b) True
  24. 24.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
  27. 27.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  28. 28.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  29. 29.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  30. 30.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
  31. 31.True or false: a big sugar cube dissolves slower. (a) True (b) False
  32. 32.🔍 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
  33. 33.True or false: warm water is needed for the dissolving test. (a) False (b) True
  34. 34.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well
  35. 35.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  36. 36.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
  37. 37.🥄 Which of these dissolves in water? (a) cooking oil (b) baking soda (c) sawdust (d) small pebbles
  38. 38.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) two clear glasses (c) warm water (d) sugar
  40. 40.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water

Answer key

  1. small pebbles
  2. True
  3. the water temperature
  4. True
  5. chalk powder
  6. faster
  7. time to dissolve
  8. cold water
  9. sugar in warm water
  10. glucose powder
  11. small pebbles
  12. dissolves in water
  13. it spread in the water
  14. we keep it the same
  15. dissolves in water
  16. we measure it
  17. a solution
  18. the amount of sugar
  19. True
  20. False
  21. a magnet
  22. slower
  23. False
  24. needed
  25. powdered sugar
  26. True
  27. needed
  28. not needed
  29. slower
  30. particles move faster
  31. True
  32. let the water evaporate
  33. True
  34. sugar left unstirred
  35. does not dissolve
  36. powdered sugar
  37. baking soda
  38. not needed
  39. a mirror
  40. does not dissolve

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