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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 746 · 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 keep it the same (b) we change it (c) we measure it
  2. 2.True or false: sawdust does not dissolve in water. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) table salt (d) chalk powder
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
  5. 5.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) sawdust (d) sugar
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
  8. 8.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
  10. 10.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a magnet (d) a crystal
  11. 11.⚖️ 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) time to dissolve (c) the stirring (d) the water temperature
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a teaspoon (d) a magnet
  13. 13.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  14. 14.🛟 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
  15. 15.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
  17. 17.True or false: powdered sugar dissolves slower. (a) True (b) False
  18. 18.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  19. 19.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  20. 20.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) powdered sugar (d) sugar left unstirred
  21. 21.🧺 Do we need two clear glasses 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
  24. 24.⚖️ 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
  25. 25.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  26. 26.True or false: sawdust dissolves in water. (a) False (b) True
  27. 27.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cold water (c) warm water (d) honey
  28. 28.True or false: sugar stirred well dissolves faster. (a) False (b) True
  29. 29.True or false: warm water is needed for the dissolving test. (a) True (b) False
  30. 30.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  31. 31.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
  34. 34.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  35. 35.🔍 Which is the odd one out? (a) table salt (b) food colour (c) glucose powder (d) sand
  36. 36.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  37. 37.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
  38. 38.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  39. 39.True or false: baking soda does not dissolve in water. (a) True (b) False
  40. 40.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains

Answer key

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

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