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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 271 · 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 powdered sugar dissolve faster or slower? (a) slower (b) faster
  2. 2.⚖️ 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 measure it (c) we change it
  3. 3.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) chalk powder (d) glucose powder
  4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a mirror (d) a teaspoon
  5. 5.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) two clear glasses (c) warm water (d) sugar
  8. 8.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  9. 9.True or false: powdered sugar dissolves slower. (a) True (b) False
  10. 10.True or false: warm water is needed for the dissolving test. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) small pebbles (b) cooking oil (c) sand (d) table salt
  12. 12.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  13. 13.True or false: sugar does not dissolve in water. (a) False (b) True
  14. 14.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  15. 15.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) the amount of sugar (d) time to dissolve
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
  18. 18.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
  19. 19.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
  20. 20.⚖️ 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
  21. 21.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
  22. 22.True or false: food colour does not dissolve in water. (a) True (b) False
  23. 23.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  24. 24.True or false: sugar stirred well dissolves faster. (a) True (b) False
  25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the water temperature (c) the stirring (d) the amount of water
  26. 26.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  27. 27.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  28. 28.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  29. 29.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  30. 30.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) sugar (d) sand
  31. 31.🔍 Which is the odd one out? (a) chalk powder (b) food colour (c) small pebbles (d) cooking oil
  32. 32.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
  33. 33.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) food colour (d) small pebbles
  34. 34.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) two clear glasses (d) a magnet
  35. 35.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  36. 36.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) small pebbles (d) table salt
  37. 37.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
  38. 38.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it sank as sand (d) it became air
  39. 39.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) sugar (d) small pebbles
  40. 40.⚖️ 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

Answer key

  1. faster
  2. we keep it the same
  3. glucose powder
  4. a mirror
  5. dissolves in water
  6. faster
  7. honey
  8. False
  9. False
  10. True
  11. table salt
  12. slower
  13. False
  14. not needed
  15. False
  16. time to dissolve
  17. False
  18. powdered sugar
  19. some stays undissolved
  20. False
  21. a grown-up
  22. False
  23. False
  24. True
  25. the water temperature
  26. does not dissolve
  27. dissolves in water
  28. needed
  29. slower
  30. sugar
  31. food colour
  32. look for leftover grains
  33. small pebbles
  34. two clear glasses
  35. False
  36. table salt
  37. sugar stirred well
  38. it spread in the water
  39. small pebbles
  40. True

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