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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 909 · 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.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  2. 2.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  3. 3.True or false: sugar in warm water dissolves slower. (a) True (b) False
  4. 4.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  5. 5.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  6. 6.True or false: sand dissolves in water. (a) True (b) False
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a mirror (c) two clear glasses (d) a teaspoon
  8. 8.True or false: sugar does not dissolve in water. (a) True (b) False
  9. 9.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) a balloon (d) warm water
  12. 12.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a balloon (d) a clock or timer
  13. 13.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) sugar (d) chalk powder
  14. 14.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  15. 15.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  16. 16.True or false: baking soda dissolves in water. (a) False (b) True
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
  18. 18.True or false: sugar stirred well dissolves faster. (a) True (b) False
  19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a magnet (d) cold water
  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 keep it the same (c) we measure it
  21. 21.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
  22. 22.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  23. 23.True or false: sugar in warm water dissolves faster. (a) False (b) True
  24. 24.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar in warm water (d) sugar stirred well
  25. 25.True or false: food colour does not dissolve in water. (a) True (b) False
  26. 26.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
  27. 27.🥄 Which of these dissolves in water? (a) small pebbles (b) chalk powder (c) food colour (d) cooking oil
  28. 28.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) some stays undissolved (d) the sugar turns to salt
  29. 29.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  31. 31.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  32. 32.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) both the same (d) neither of them
  33. 33.🧺 Which of these is not needed for the dissolving test? (a) honey (b) cold water (c) sugar (d) warm water
  34. 34.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) sand (d) food colour
  35. 35.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) a magnet (d) a mirror
  36. 36.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) warm water (c) a balloon (d) a magnet
  37. 37.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it turns blue (d) it settles at the bottom
  38. 38.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) a magnet (d) two clear glasses
  39. 39.True or false: baking soda does not dissolve in water. (a) True (b) False
  40. 40.True or false: sugar in icy water dissolves slower. (a) True (b) False

Answer key

  1. slower
  2. False
  3. False
  4. not needed
  5. dissolves in water
  6. False
  7. a mirror
  8. False
  9. faster
  10. we keep it the same
  11. a balloon
  12. a clock or timer
  13. sugar
  14. does not dissolve
  15. True
  16. True
  17. we measure it
  18. True
  19. a magnet
  20. we keep it the same
  21. particles move faster
  22. not needed
  23. True
  24. sugar in icy water
  25. False
  26. it spread in the water
  27. food colour
  28. some stays undissolved
  29. sugar in warm water
  30. we keep it the same
  31. dissolves in water
  32. powdered sugar
  33. honey
  34. sand
  35. two clear glasses
  36. warm water
  37. it settles at the bottom
  38. a magnet
  39. False
  40. True

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