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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 966 · 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.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
  2. 2.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  4. 4.🥄 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
  5. 5.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
  6. 6.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
  7. 7.True or false: sugar in warm water dissolves faster. (a) False (b) True
  8. 8.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) sugar (d) sawdust
  9. 9.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  10. 10.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
  11. 11.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) cold water (c) a mirror (d) a magnet
  12. 12.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) sawdust (d) table salt
  13. 13.True or false: chalk powder dissolves in water. (a) True (b) False
  14. 14.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar stirred well (d) sugar in warm water
  15. 15.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  16. 16.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  17. 17.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a rainbow (c) a magnet (d) a crystal
  18. 18.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar stirred well (d) sugar left unstirred
  19. 19.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) sand (d) chalk powder
  20. 20.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
  22. 22.True or false: cooking oil does not dissolve in water. (a) True (b) False
  23. 23.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) a magnet (d) cold water
  24. 24.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) sand (d) sugar
  25. 25.⚖️ 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
  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 change it (b) we keep it the same (c) we measure it
  27. 27.True or false: sawdust does not dissolve in water. (a) False (b) True
  28. 28.⚖️ 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 sugar (d) the kind of sugar
  29. 29.True or false: sugar does not dissolve in water. (a) True (b) False
  30. 30.🥄 Which of these dissolves in water? (a) cooking oil (b) baking soda (c) sand (d) chalk powder
  31. 31.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) let the water evaporate (d) stir it more
  32. 32.True or false: chalk powder does not dissolve in water. (a) False (b) True
  33. 33.⚖️ 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
  34. 34.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a balloon (c) two clear glasses (d) warm water
  35. 35.True or false: baking soda does not dissolve in water. (a) False (b) True
  36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
  37. 37.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) sawdust (d) food colour
  38. 38.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) food colour (d) small pebbles
  39. 39.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  40. 40.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. powdered sugar
  2. dissolves in water
  3. slower
  4. particles move faster
  5. a grown-up
  6. it spread in the water
  7. True
  8. sugar
  9. does not dissolve
  10. faster
  11. cold water
  12. table salt
  13. False
  14. sugar in icy water
  15. not needed
  16. does not dissolve
  17. a solution
  18. sugar stirred well
  19. food colour
  20. not needed
  21. True
  22. True
  23. a magnet
  24. sand
  25. we keep it the same
  26. we change it
  27. True
  28. time to dissolve
  29. False
  30. baking soda
  31. let the water evaporate
  32. True
  33. True
  34. a balloon
  35. False
  36. False
  37. food colour
  38. small pebbles
  39. True
  40. does not dissolve

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