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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 73 · 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) slower (b) faster
  2. 2.True or false: sand dissolves in water. (a) False (b) True
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the stirring (c) the amount of water (d) time to dissolve
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the kind of sugar (c) the amount of sugar (d) the water temperature
  5. 5.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  6. 6.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  7. 7.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  8. 8.True or false: table salt does not dissolve in water. (a) True (b) False
  9. 9.🔮 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
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) honey (c) sugar (d) a teaspoon
  11. 11.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
  12. 12.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) food colour (d) chalk powder
  13. 13.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
  14. 14.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  15. 15.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  16. 16.🔍 Which is the odd one out? (a) sugar (b) table salt (c) small pebbles (d) food colour
  17. 17.⚖️ 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 kind of sugar (c) the water temperature
  18. 18.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) sugar (d) cooking oil
  19. 19.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) chalk powder (d) sand
  20. 20.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
  21. 21.True or false: sugar stirred well dissolves faster. (a) True (b) False
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  23. 23.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar in warm water
  24. 24.True or false: small pebbles dissolves in water. (a) True (b) False
  25. 25.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  26. 26.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  27. 27.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  28. 28.🥄 Which of these dissolves in water? (a) sugar (b) chalk powder (c) sawdust (d) cooking oil
  29. 29.True or false: powdered sugar dissolves slower. (a) True (b) False
  30. 30.True or false: sugar in icy water dissolves faster. (a) True (b) False
  31. 31.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  32. 32.True or false: a big sugar cube dissolves faster. (a) False (b) True
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
  34. 34.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  35. 35.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
  36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
  37. 37.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a balloon (c) two clear glasses (d) sugar
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
  39. 39.True or false: a comb is needed for the dissolving test. (a) True (b) False
  40. 40.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster

Answer key

  1. slower
  2. False
  3. time to dissolve
  4. the water temperature
  5. not needed
  6. does not dissolve
  7. False
  8. False
  9. powdered sugar
  10. honey
  11. a grown-up
  12. food colour
  13. faster
  14. needed
  15. dissolves in water
  16. small pebbles
  17. the kind of sugar
  18. cooking oil
  19. table salt
  20. True
  21. True
  22. we keep it the same
  23. sugar in warm water
  24. False
  25. needed
  26. False
  27. needed
  28. sugar
  29. False
  30. False
  31. False
  32. False
  33. True
  34. not needed
  35. let the water evaporate
  36. False
  37. a balloon
  38. we change it
  39. False
  40. particles move faster

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