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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 575 · 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 water temperature is kept the same. (a) False (b) True
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
  3. 3.True or false: sand does not dissolve in water. (a) True (b) False
  4. 4.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it vanished for ever (d) it became air
  5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
  6. 6.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  7. 7.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
  9. 9.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
  10. 10.True or false: powdered sugar dissolves faster. (a) True (b) False
  11. 11.True or false: a comb is needed for the dissolving test. (a) True (b) False
  12. 12.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  13. 13.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
  14. 14.True or false: table salt does not dissolve in water. (a) False (b) True
  15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) sugar (c) warm water (d) two clear glasses
  16. 16.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) sugar (c) honey (d) a comb
  17. 17.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  18. 18.True or false: small pebbles dissolves in water. (a) True (b) False
  19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of sugar (c) the water temperature (d) the kind of sugar
  20. 20.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  21. 21.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) time to dissolve (c) the amount of sugar (d) the stirring
  23. 23.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) sugar (d) sand
  24. 24.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a solution (d) a magnet
  25. 25.True or false: food colour dissolves in water. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) sugar (d) table salt
  27. 27.🔍 Which is the odd one out? (a) food colour (b) chalk powder (c) cooking oil (d) sand
  28. 28.True or false: baking soda dissolves in water. (a) False (b) True
  29. 29.True or false: small pebbles does not dissolve in water. (a) True (b) False
  30. 30.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar stirred well
  31. 31.True or false: a big sugar cube dissolves slower. (a) True (b) False
  32. 32.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  33. 33.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  34. 34.⚖️ 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
  35. 35.⚖️ 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
  36. 36.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) cooking oil (d) glucose powder
  37. 37.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
  38. 38.⚖️ 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
  39. 39.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
  40. 40.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) a clock or timer (d) cotton wool

Answer key

  1. False
  2. False
  3. True
  4. it spread in the water
  5. False
  6. needed
  7. does not dissolve
  8. True
  9. look for leftover grains
  10. True
  11. False
  12. does not dissolve
  13. a grown-up
  14. False
  15. a balloon
  16. sugar
  17. faster
  18. False
  19. the water temperature
  20. dissolves in water
  21. does not dissolve
  22. time to dissolve
  23. sand
  24. a solution
  25. True
  26. chalk powder
  27. food colour
  28. True
  29. True
  30. sugar stirred well
  31. True
  32. does not dissolve
  33. slower
  34. we keep it the same
  35. False
  36. cooking oil
  37. sugar in warm water
  38. we change it
  39. it settles at the bottom
  40. a clock or timer

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