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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 813 · 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.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  2. 2.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it vanished for ever (d) it sank as sand
  3. 3.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) taste it (d) poke it with a finger
  4. 4.True or false: a big sugar cube dissolves faster. (a) False (b) True
  5. 5.⚖️ 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 water temperature (c) the kind of sugar (d) the amount of water
  6. 6.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  7. 7.True or false: powdered sugar dissolves slower. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) cooking oil (d) sawdust
  9. 9.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) cold water is wet (d) particles move faster
  10. 10.True or false: sugar in warm water dissolves faster. (a) False (b) True
  11. 11.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar in warm water (d) sugar stirred well
  12. 12.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  13. 13.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
  14. 14.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  15. 15.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) chalk powder (d) sugar
  16. 16.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet
  17. 17.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  18. 18.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  19. 19.⚖️ 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 measure it (c) we change it
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) a clock or timer (d) a teaspoon
  21. 21.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  22. 22.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar in icy water (d) sugar stirred well
  23. 23.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) the water turns solid (c) some stays undissolved (d) all of it dissolves
  24. 24.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  25. 25.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  26. 26.🧺 Which of these is needed for the dissolving test? (a) a comb (b) sugar (c) a magnet (d) honey
  27. 27.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  29. 29.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) honey (c) a magnet (d) cotton wool
  30. 30.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  31. 31.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) cold water (d) a comb
  32. 32.True or false: food colour dissolves in water. (a) False (b) True
  33. 33.True or false: sugar stirred well dissolves faster. (a) False (b) True
  34. 34.True or false: cold water is needed for the dissolving test. (a) True (b) False
  35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) a teaspoon (d) a comb
  36. 36.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) honey (d) a teaspoon
  37. 37.🥄 Which of these does not dissolve in water? (a) glucose powder (b) cooking oil (c) baking soda (d) sugar
  38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) cotton wool (d) warm water
  39. 39.⚖️ 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
  40. 40.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) cold water (c) sugar (d) a teaspoon

Answer key

  1. needed
  2. it spread in the water
  3. look for leftover grains
  4. False
  5. the water temperature
  6. dissolves in water
  7. False
  8. sugar
  9. particles move faster
  10. True
  11. sugar left unstirred
  12. False
  13. a big sugar cube
  14. False
  15. chalk powder
  16. a solution
  17. slower
  18. faster
  19. we change it
  20. a balloon
  21. faster
  22. sugar in icy water
  23. some stays undissolved
  24. needed
  25. dissolves in water
  26. sugar
  27. False
  28. False
  29. a teaspoon
  30. needed
  31. cold water
  32. True
  33. True
  34. True
  35. a comb
  36. honey
  37. cooking oil
  38. cotton wool
  39. we keep it the same
  40. a magnet

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