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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 564 · 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 is the odd one out? (a) sand (b) chalk powder (c) sugar (d) small pebbles
  2. 2.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the stirring (c) time to dissolve (d) the amount of water
  4. 4.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  5. 5.True or false: sugar in icy water dissolves faster. (a) False (b) True
  6. 6.True or false: a comb is needed for the dissolving test. (a) True (b) False
  7. 7.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) sugar (d) cotton wool
  9. 9.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) cold water (d) a magnet
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) a clock or timer (d) warm water
  11. 11.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  12. 12.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
  13. 13.True or false: a big sugar cube dissolves faster. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) baking soda (b) sand (c) food colour (d) sugar
  15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) cold water (d) honey
  16. 16.True or false: sugar in warm water dissolves slower. (a) True (b) False
  17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) a mirror (d) two clear glasses
  18. 18.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
  19. 19.🥄 Which of these dissolves in water? (a) cooking oil (b) food colour (c) sawdust (d) small pebbles
  20. 20.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
  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.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sawdust (d) food colour
  24. 24.🔍 Which is the odd one out? (a) glucose powder (b) small pebbles (c) food colour (d) baking soda
  25. 25.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  26. 26.True or false: sand dissolves in water. (a) False (b) True
  27. 27.🔮 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 sugar turns to salt (c) some stays undissolved (d) the water turns solid
  28. 28.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
  29. 29.True or false: sugar is needed for the dissolving test. (a) False (b) True
  30. 30.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) warm water (d) cotton wool
  31. 31.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  32. 32.⚖️ 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) True (b) False
  33. 33.True or false: baking soda dissolves in water. (a) False (b) True
  34. 34.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  35. 35.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  36. 36.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
  38. 38.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  39. 39.⚖️ 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
  40. 40.True or false: powdered sugar dissolves slower. (a) True (b) False

Answer key

  1. sugar
  2. sugar in warm water
  3. time to dissolve
  4. dissolves in water
  5. False
  6. False
  7. faster
  8. cotton wool
  9. a magnet
  10. a balloon
  11. True
  12. powdered sugar
  13. False
  14. sand
  15. honey
  16. False
  17. a mirror
  18. False
  19. food colour
  20. False
  21. it spread in the water
  22. we change it
  23. food colour
  24. small pebbles
  25. does not dissolve
  26. False
  27. some stays undissolved
  28. faster
  29. True
  30. warm water
  31. needed
  32. True
  33. True
  34. dissolves in water
  35. dissolves in water
  36. look for leftover grains
  37. we keep it the same
  38. False
  39. the amount of sugar
  40. False

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