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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 704 · 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 sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  2. 2.True or false: sugar stirred well dissolves faster. (a) True (b) False
  3. 3.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) two clear glasses (c) a balloon (d) a teaspoon
  4. 4.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  5. 5.True or false: small pebbles does not dissolve in water. (a) False (b) True
  6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) two clear glasses (d) cotton wool
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) time to dissolve (c) the water temperature
  8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of sugar (c) the stirring (d) the water temperature
  9. 9.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  10. 10.True or false: chalk powder does not dissolve in water. (a) True (b) False
  11. 11.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  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.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
  14. 14.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) sand (d) food colour
  15. 15.True or false: warm water is needed for the dissolving test. (a) True (b) False
  16. 16.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  17. 17.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) table salt (d) chalk powder
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a magnet (c) two clear glasses (d) a clock or timer
  19. 19.🔍 Which is the odd one out? (a) sand (b) food colour (c) chalk powder (d) small pebbles
  20. 20.🛟 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
  21. 21.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
  22. 22.True or false: powdered sugar dissolves faster. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) small pebbles (d) sugar
  24. 24.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  25. 25.True or false: sugar in warm water dissolves slower. (a) False (b) True
  26. 26.True or false: chalk powder dissolves in water. (a) True (b) False
  27. 27.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) a mirror (d) a teaspoon
  28. 28.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  30. 30.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  32. 32.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a teaspoon (d) honey
  35. 35.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) chalk powder (d) small pebbles
  36. 36.True or false: baking soda dissolves in water. (a) True (b) False
  37. 37.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
  38. 38.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
  39. 39.⚖️ 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
  40. 40.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) stir it more (c) keep it in a fridge (d) add more water

Answer key

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

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