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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 313 · 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 kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  2. 2.True or false: a comb is not needed for the dissolving test. (a) False (b) True
  3. 3.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
  4. 4.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a mirror (c) a magnet (d) a balloon
  5. 5.True or false: cooking oil dissolves in water. (a) True (b) False
  6. 6.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
  7. 7.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
  8. 8.True or false: sugar in warm water dissolves slower. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) glucose powder (d) cooking oil
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) a teaspoon (d) cotton wool
  11. 11.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  12. 12.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  13. 13.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) powdered sugar
  14. 14.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) sugar (d) table salt
  15. 15.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) glucose powder (d) sugar
  16. 16.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
  17. 17.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  18. 18.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
  19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) cold water (d) a comb
  20. 20.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  21. 21.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  23. 23.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
  24. 24.🥄 Which of these does not dissolve in water? (a) sawdust (b) sugar (c) glucose powder (d) baking soda
  25. 25.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  26. 26.True or false: sawdust dissolves in water. (a) False (b) True
  27. 27.True or false: sugar in icy water dissolves slower. (a) False (b) True
  28. 28.⚖️ 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 sugar (b) the stirring (c) the water temperature (d) the kind of sugar
  29. 29.⚖️ 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
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) a magnet (d) sugar
  31. 31.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  32. 32.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a solution (d) a rainbow
  33. 33.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  34. 34.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
  36. 36.⚖️ 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 amount of sugar (c) the kind of sugar (d) time to dissolve
  37. 37.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
  38. 38.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  39. 39.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
  40. 40.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a comb (c) a magnet (d) a mirror

Answer key

  1. we keep it the same
  2. True
  3. faster
  4. two clear glasses
  5. False
  6. a grown-up
  7. True
  8. False
  9. glucose powder
  10. cotton wool
  11. not needed
  12. not needed
  13. powdered sugar
  14. cooking oil
  15. chalk powder
  16. sugar stirred well
  17. False
  18. True
  19. a comb
  20. dissolves in water
  21. True
  22. True
  23. a big sugar cube
  24. sawdust
  25. slower
  26. False
  27. True
  28. the water temperature
  29. False
  30. a magnet
  31. not needed
  32. a solution
  33. needed
  34. True
  35. False
  36. time to dissolve
  37. look for leftover grains
  38. slower
  39. let the water evaporate
  40. warm water

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