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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 380 · 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: 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) some stays undissolved (d) all of it dissolves
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
  3. 3.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it spread in the water (d) it vanished for ever
  4. 4.True or false: a big sugar cube dissolves slower. (a) False (b) True
  5. 5.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  6. 6.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
  7. 7.True or false: sugar in warm water dissolves faster. (a) False (b) True
  8. 8.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  9. 9.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) powdered sugar (d) sugar stirred well
  10. 10.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  11. 11.True or false: glucose powder does not dissolve in water. (a) True (b) False
  12. 12.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) chalk powder (d) food colour
  13. 13.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a magnet (d) a clock or timer
  15. 15.⚖️ 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 change it (c) we keep it the same
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  17. 17.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) honey (d) two clear glasses
  19. 19.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a magnet (c) warm water (d) cold water
  20. 20.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  21. 21.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  22. 22.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
  23. 23.True or false: food colour does not dissolve in water. (a) False (b) True
  24. 24.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) sawdust (d) baking soda
  25. 25.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  26. 26.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) warm water (d) honey
  27. 27.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) warm water is thicker (c) sugar likes the dark (d) cold water is wet
  28. 28.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a clock or timer (c) a balloon (d) a magnet
  29. 29.True or false: sugar dissolves in water. (a) False (b) True
  30. 30.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
  31. 31.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  32. 32.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
  33. 33.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) table salt (d) small pebbles
  34. 34.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
  36. 36.🥄 Which of these dissolves in water? (a) sawdust (b) glucose powder (c) cooking oil (d) sand
  37. 37.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  38. 38.⚖️ 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
  39. 39.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
  40. 40.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. some stays undissolved
  2. we change it
  3. it spread in the water
  4. True
  5. slower
  6. it settles at the bottom
  7. True
  8. False
  9. a big sugar cube
  10. faster
  11. False
  12. food colour
  13. False
  14. a magnet
  15. we measure it
  16. True
  17. does not dissolve
  18. honey
  19. a magnet
  20. True
  21. False
  22. a grown-up
  23. False
  24. sawdust
  25. does not dissolve
  26. warm water
  27. particles move faster
  28. a clock or timer
  29. True
  30. sugar stirred well
  31. not needed
  32. look for leftover grains
  33. small pebbles
  34. a solution
  35. True
  36. glucose powder
  37. False
  38. False
  39. sugar left unstirred
  40. dissolves in water

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