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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 708 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the kind of sugar (c) the amount of water (d) the water temperature
  3. 3.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  4. 4.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  5. 5.🔮 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) the sugar turns to salt (d) some stays undissolved
  6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) a mirror (d) a clock or timer
  7. 7.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) the sugar cube (d) powdered sugar
  8. 8.True or false: small pebbles dissolves in water. (a) True (b) False
  9. 9.⚖️ 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
  10. 10.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) powdered sugar (d) sugar in icy water
  11. 11.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) a clock or timer (d) cotton wool
  13. 13.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) sugar (c) warm water (d) honey
  14. 14.🔍 Which is the odd one out? (a) baking soda (b) sand (c) sugar (d) table salt
  15. 15.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  16. 16.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) sawdust (d) food colour
  17. 17.🥄 Which of these dissolves in water? (a) chalk powder (b) food colour (c) sand (d) sawdust
  18. 18.True or false: a comb is needed for the dissolving test. (a) True (b) False
  19. 19.⚖️ 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
  20. 20.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) a mirror (c) honey (d) a magnet
  21. 21.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  22. 22.🔍 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
  23. 23.True or false: food colour dissolves in water. (a) False (b) True
  24. 24.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a teaspoon (c) warm water (d) a mirror
  25. 25.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  26. 26.🔍 Which is the odd one out? (a) food colour (b) sawdust (c) glucose powder (d) table salt
  27. 27.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
  28. 28.True or false: sugar in warm water dissolves faster. (a) False (b) True
  29. 29.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) stir it more (d) let the water evaporate
  30. 30.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  31. 31.True or false: sugar is needed for the dissolving test. (a) True (b) False
  32. 32.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
  33. 33.True or false: cooking oil does not dissolve in water. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) food colour (d) baking soda
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
  36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a magnet (d) cold water
  37. 37.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) glucose powder (d) sand
  38. 38.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) two clear glasses (c) a teaspoon (d) warm water
  39. 39.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  40. 40.True or false: cooking oil dissolves in water. (a) True (b) False

Answer key

  1. we keep it the same
  2. the water temperature
  3. needed
  4. does not dissolve
  5. some stays undissolved
  6. a mirror
  7. powdered sugar
  8. False
  9. we keep it the same
  10. powdered sugar
  11. look for leftover grains
  12. cotton wool
  13. honey
  14. sand
  15. slower
  16. food colour
  17. food colour
  18. False
  19. False
  20. a teaspoon
  21. needed
  22. it settles at the bottom
  23. True
  24. a mirror
  25. does not dissolve
  26. sawdust
  27. a grown-up
  28. True
  29. let the water evaporate
  30. needed
  31. True
  32. faster
  33. True
  34. chalk powder
  35. True
  36. a magnet
  37. sand
  38. cotton wool
  39. True
  40. False

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