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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 309 · 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 dissolves slower? (a) a big sugar cube (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
  2. 2.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) table salt (d) chalk powder
  3. 3.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) sugar (d) a mirror
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the water temperature (c) the stirring (d) time to dissolve
  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 measure it (b) we keep it the same (c) we change it
  6. 6.⚖️ 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
  7. 7.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a balloon (c) sugar (d) two clear glasses
  8. 8.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  9. 9.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  10. 10.True or false: sugar is needed for the dissolving test. (a) True (b) False
  11. 11.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker
  12. 12.True or false: a big sugar cube dissolves faster. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) chalk powder (b) food colour (c) small pebbles (d) sand
  14. 14.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it sank as sand (d) it spread in the water
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the stirring (c) the water temperature
  16. 16.⚖️ 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
  17. 17.⚖️ 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
  18. 18.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  19. 19.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) baking soda (d) sand
  20. 20.🔮 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
  21. 21.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
  22. 22.True or false: a comb is needed for the dissolving test. (a) False (b) True
  23. 23.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) sawdust (d) sugar
  24. 24.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  25. 25.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
  26. 26.True or false: cooking oil dissolves in water. (a) False (b) True
  27. 27.True or false: table salt does not dissolve in water. (a) True (b) False
  28. 28.True or false: sugar in icy water dissolves slower. (a) False (b) True
  29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a magnet (c) two clear glasses (d) sugar
  30. 30.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  31. 31.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) sugar in icy water (d) a big sugar cube
  32. 32.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) cooking oil (d) glucose powder
  33. 33.True or false: cooking oil does not dissolve in water. (a) False (b) True
  34. 34.True or false: food colour does not dissolve in water. (a) True (b) False
  35. 35.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
  36. 36.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  37. 37.True or false: powdered sugar dissolves slower. (a) False (b) True
  38. 38.True or false: table salt dissolves in water. (a) False (b) True
  39. 39.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
  40. 40.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar in warm water (d) sugar stirred well

Answer key

  1. a big sugar cube
  2. table salt
  3. a mirror
  4. the water temperature
  5. we keep it the same
  6. True
  7. a balloon
  8. False
  9. does not dissolve
  10. True
  11. particles move faster
  12. False
  13. food colour
  14. it spread in the water
  15. the stirring
  16. True
  17. False
  18. slower
  19. baking soda
  20. powdered sugar
  21. sugar in warm water
  22. False
  23. sugar
  24. needed
  25. sugar left unstirred
  26. False
  27. False
  28. True
  29. a magnet
  30. not needed
  31. sugar stirred well
  32. glucose powder
  33. True
  34. False
  35. it settles at the bottom
  36. False
  37. False
  38. True
  39. a grown-up
  40. sugar in icy water

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