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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 617 · 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.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a solution (d) a crystal
  2. 2.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the kind of sugar (c) the amount of sugar (d) time to dissolve
  4. 4.True or false: baking soda dissolves in water. (a) False (b) True
  5. 5.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  6. 6.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  7. 7.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in icy water (d) sugar in warm water
  8. 8.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  9. 9.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
  10. 10.🥄 Which of these dissolves faster? (a) sugar stirred well (b) a big sugar cube (c) sugar in icy water (d) sugar left unstirred
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a teaspoon (d) cotton wool
  13. 13.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
  14. 14.True or false: sugar in warm water dissolves faster. (a) True (b) False
  15. 15.🔮 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 water turns solid (c) the sugar turns to salt (d) some stays undissolved
  16. 16.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a magnet (c) sugar (d) two clear glasses
  17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
  18. 18.True or false: food colour dissolves in water. (a) True (b) False
  19. 19.True or false: powdered sugar dissolves faster. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) glucose powder (b) sawdust (c) small pebbles (d) chalk powder
  21. 21.🥄 Which of these dissolves in water? (a) sugar (b) sawdust (c) small pebbles (d) sand
  22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a comb (d) a teaspoon
  23. 23.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a comb (c) a teaspoon (d) two clear glasses
  24. 24.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  25. 25.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) cooking oil (d) table salt
  26. 26.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  27. 27.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) powdered sugar (d) sugar left unstirred
  28. 28.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  29. 29.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) a big sugar cube
  30. 30.⚖️ 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
  31. 31.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
  32. 32.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.⚖️ 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 stirring (c) the amount of sugar (d) the water temperature
  34. 34.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  35. 35.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) a teaspoon (d) a balloon
  36. 36.True or false: small pebbles dissolves in water. (a) False (b) True
  37. 37.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  38. 38.True or false: sugar stirred well dissolves faster. (a) True (b) False
  39. 39.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a mirror (d) warm water

Answer key

  1. a solution
  2. True
  3. time to dissolve
  4. True
  5. dissolves in water
  6. needed
  7. sugar in icy water
  8. does not dissolve
  9. look for leftover grains
  10. sugar stirred well
  11. True
  12. cotton wool
  13. a grown-up
  14. True
  15. some stays undissolved
  16. a magnet
  17. faster
  18. True
  19. True
  20. glucose powder
  21. sugar
  22. a comb
  23. a comb
  24. not needed
  25. cooking oil
  26. faster
  27. powdered sugar
  28. does not dissolve
  29. a big sugar cube
  30. False
  31. let the water evaporate
  32. dissolves in water
  33. the water temperature
  34. not needed
  35. a teaspoon
  36. False
  37. dissolves in water
  38. True
  39. True
  40. a mirror

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