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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 726 · 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? True or false: the amount of water is kept the same. (a) True (b) False
  2. 2.True or false: sawdust dissolves in water. (a) False (b) True
  3. 3.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
  4. 4.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
  6. 6.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
  7. 7.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a clock or timer (c) a teaspoon (d) cold water
  9. 9.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  11. 11.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  12. 12.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  13. 13.True or false: cooking oil does not dissolve in water. (a) False (b) True
  14. 14.True or false: sugar does not dissolve in water. (a) True (b) False
  15. 15.True or false: sugar in icy water dissolves slower. (a) True (b) False
  16. 16.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
  17. 17.🔍 Which is the odd one out? (a) cooking oil (b) glucose powder (c) baking soda (d) table salt
  18. 18.🥄 Which of these dissolves in water? (a) small pebbles (b) baking soda (c) cooking oil (d) sand
  19. 19.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  20. 20.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  21. 21.True or false: sugar in warm water dissolves slower. (a) True (b) False
  22. 22.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
  24. 24.True or false: baking soda dissolves in water. (a) True (b) False
  25. 25.⚖️ 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
  26. 26.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) baking soda (d) sawdust
  27. 27.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) a comb (d) honey
  28. 28.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) warm water (c) a teaspoon (d) two clear glasses
  29. 29.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar in warm water (d) sugar stirred well
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
  31. 31.🥄 Which of these does not dissolve in water? (a) food colour (b) chalk powder (c) glucose powder (d) baking soda
  32. 32.⚖️ 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 amount of water (c) the water temperature (d) time to dissolve
  33. 33.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) sand (d) baking soda
  34. 34.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
  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) False (b) True
  37. 37.True or false: sugar in icy water dissolves faster. (a) False (b) True
  38. 38.True or false: sugar dissolves in water. (a) True (b) False
  39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it

Answer key

  1. True
  2. False
  3. some stays undissolved
  4. needed
  5. faster
  6. powdered sugar
  7. not needed
  8. cotton wool
  9. not needed
  10. True
  11. True
  12. True
  13. True
  14. False
  15. True
  16. look for leftover grains
  17. cooking oil
  18. baking soda
  19. False
  20. faster
  21. False
  22. a grown-up
  23. we measure it
  24. True
  25. we keep it the same
  26. sawdust
  27. sugar
  28. a magnet
  29. a big sugar cube
  30. False
  31. chalk powder
  32. time to dissolve
  33. sand
  34. True
  35. we keep it the same
  36. False
  37. False
  38. True
  39. faster
  40. we keep it the same

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