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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 201 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) not at all (d) the same
  2. 2.⚖️ 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 keep it the same (c) we change it
  3. 3.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar stirred well (d) sugar in warm water
  4. 4.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  5. 5.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) sugar in icy water (d) a big sugar cube
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the amount of water
  7. 7.⚖️ 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) False (b) True
  8. 8.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  9. 9.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) cooking oil (d) glucose powder
  10. 10.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  11. 11.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) sugar (d) sawdust
  12. 12.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the amount of sugar (c) time to dissolve
  14. 14.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  15. 15.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  16. 16.True or false: warm water is needed for the dissolving test. (a) False (b) True
  17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a teaspoon (d) a balloon
  18. 18.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) chalk powder (d) food colour
  19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  20. 20.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  21. 21.⚖️ 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
  22. 22.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  23. 23.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  24. 24.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  25. 25.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) poke it with a finger (d) smell it closely
  26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a comb (d) cold water
  27. 27.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  28. 28.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) two clear glasses (d) a balloon
  29. 29.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) the water turns solid (d) some stays undissolved
  30. 30.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  31. 31.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  32. 32.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  33. 33.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) small pebbles (d) baking soda
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a magnet (d) cold water
  35. 35.⚖️ 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) False (b) True
  36. 36.🔍 Which is the odd one out? (a) food colour (b) table salt (c) glucose powder (d) small pebbles
  37. 37.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) sand (d) sugar
  38. 38.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  39. 39.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) sugar (c) warm water (d) a clock or timer
  40. 40.🔍 Which is the odd one out? (a) baking soda (b) cooking oil (c) sand (d) chalk powder

Answer key

  1. faster
  2. we keep it the same
  3. a big sugar cube
  4. not needed
  5. powdered sugar
  6. the amount of water
  7. True
  8. does not dissolve
  9. glucose powder
  10. does not dissolve
  11. sawdust
  12. not needed
  13. the amount of sugar
  14. dissolves in water
  15. needed
  16. True
  17. a balloon
  18. food colour
  19. we keep it the same
  20. dissolves in water
  21. False
  22. slower
  23. not needed
  24. False
  25. look for leftover grains
  26. a comb
  27. False
  28. two clear glasses
  29. some stays undissolved
  30. needed
  31. slower
  32. True
  33. baking soda
  34. a magnet
  35. False
  36. small pebbles
  37. sand
  38. False
  39. a comb
  40. baking soda

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