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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 186 · 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.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) poke it with a finger (d) taste it
  2. 2.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) small pebbles (d) glucose powder
  3. 3.True or false: food colour dissolves in water. (a) True (b) False
  4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a balloon (c) two clear glasses (d) a clock or timer
  5. 5.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
  7. 7.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  8. 8.⚖️ 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 amount of sugar (c) the water temperature
  9. 9.🥄 Which of these does not dissolve in water? (a) food colour (b) sawdust (c) baking soda (d) sugar
  10. 10.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  11. 11.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) not at all (d) the same
  12. 12.True or false: cold water is needed for the dissolving test. (a) False (b) True
  13. 13.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  14. 14.🥄 Which of these dissolves in water? (a) glucose powder (b) sand (c) cooking oil (d) chalk powder
  15. 15.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) powdered sugar (d) a big sugar cube
  16. 16.🥄 Which of these dissolves in water? (a) food colour (b) sand (c) sawdust (d) small pebbles
  17. 17.⚖️ 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) time to dissolve (c) the amount of water
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) sugar (d) warm water
  19. 19.⚖️ 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
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
  21. 21.True or false: glucose powder dissolves in water. (a) False (b) True
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
  23. 23.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  24. 24.True or false: chalk powder dissolves in water. (a) False (b) True
  25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) the water temperature (c) time to dissolve
  26. 26.True or false: sugar does not dissolve in water. (a) True (b) False
  27. 27.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  28. 28.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a mirror (c) cold water (d) sugar
  29. 29.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) cooking oil (d) food colour
  30. 30.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) food colour (d) cooking oil
  33. 33.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) warm water (c) sugar (d) cold water
  34. 34.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) sand (d) table salt
  35. 35.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar in icy water (d) powdered sugar
  36. 36.True or false: sugar dissolves in water. (a) True (b) False
  37. 37.True or false: sugar stirred well dissolves faster. (a) True (b) False
  38. 38.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
  39. 39.⚖️ 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) True (b) False
  40. 40.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air

Answer key

  1. look for leftover grains
  2. small pebbles
  3. True
  4. a balloon
  5. faster
  6. True
  7. slower
  8. the amount of sugar
  9. sawdust
  10. needed
  11. faster
  12. True
  13. does not dissolve
  14. glucose powder
  15. powdered sugar
  16. food colour
  17. the amount of water
  18. honey
  19. True
  20. we keep it the same
  21. True
  22. we change it
  23. not needed
  24. False
  25. the kind of sugar
  26. False
  27. faster
  28. a mirror
  29. cooking oil
  30. slower
  31. False
  32. cooking oil
  33. cotton wool
  34. table salt
  35. sugar in icy water
  36. True
  37. True
  38. a grown-up
  39. False
  40. it spread in the water

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