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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 566 · 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.True or false: sand does not dissolve in water. (a) True (b) False
  2. 2.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
  3. 3.🔍 Which is the odd one out? (a) food colour (b) table salt (c) chalk powder (d) sugar
  4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a clock or timer (d) cotton wool
  5. 5.🥄 Which of these does not dissolve in water? (a) sugar (b) sawdust (c) table salt (d) glucose powder
  6. 6.⚖️ 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
  7. 7.True or false: sugar in icy water dissolves slower. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) sand (d) food colour
  9. 9.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) sugar (d) a clock or timer
  10. 10.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  11. 11.True or false: sawdust does not dissolve in water. (a) True (b) False
  12. 12.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  13. 13.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) both the same (d) neither of them
  14. 14.⚖️ 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 keep it the same (c) we measure it
  15. 15.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  16. 16.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  18. 18.True or false: sugar stirred well dissolves slower. (a) True (b) False
  19. 19.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  20. 20.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  21. 21.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  22. 22.⚖️ 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 measure it (c) we keep it the same
  23. 23.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a clock or timer (c) a mirror (d) cotton wool
  24. 24.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  25. 25.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  26. 26.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  27. 27.True or false: baking soda dissolves in water. (a) False (b) True
  28. 28.True or false: honey is not needed for the dissolving test. (a) False (b) True
  29. 29.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) a teaspoon (d) honey
  30. 30.🔍 Which is the odd one out? (a) food colour (b) sugar (c) cooking oil (d) baking soda
  31. 31.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  32. 32.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) baking soda (d) chalk powder
  33. 33.True or false: table salt does not dissolve in water. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) small pebbles (d) food colour
  35. 35.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar in icy water (d) sugar stirred well
  36. 36.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  37. 37.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) the same (d) slower
  38. 38.True or false: food colour does not dissolve in water. (a) True (b) False
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) cold water (c) warm water (d) sugar
  40. 40.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) sugar left unstirred (d) a big sugar cube

Answer key

  1. True
  2. look for leftover grains
  3. chalk powder
  4. cotton wool
  5. sawdust
  6. False
  7. True
  8. food colour
  9. cotton wool
  10. False
  11. True
  12. False
  13. powdered sugar
  14. we keep it the same
  15. dissolves in water
  16. some stays undissolved
  17. True
  18. False
  19. faster
  20. not needed
  21. slower
  22. we keep it the same
  23. a clock or timer
  24. needed
  25. True
  26. False
  27. True
  28. True
  29. honey
  30. cooking oil
  31. slower
  32. baking soda
  33. False
  34. small pebbles
  35. sugar in icy water
  36. needed
  37. faster
  38. False
  39. a magnet
  40. sugar in warm water

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