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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 808 · 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) all of it dissolves (b) some stays undissolved (c) the sugar turns to salt (d) the water turns solid
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the kind of sugar (c) the amount of water (d) the water temperature
  3. 3.⚖️ 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
  4. 4.🥄 Which of these dissolves in water? (a) sugar (b) cooking oil (c) sawdust (d) sand
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) a balloon (d) a teaspoon
  6. 6.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  7. 7.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) a clock or timer (d) honey
  9. 9.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) table salt (d) small pebbles
  10. 10.True or false: chalk powder dissolves in water. (a) False (b) True
  11. 11.True or false: food colour does not dissolve in water. (a) False (b) True
  12. 12.True or false: sugar in icy water dissolves faster. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) sugar (d) small pebbles
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
  16. 16.🥄 Which of these does not dissolve in water? (a) baking soda (b) cooking oil (c) sugar (d) table salt
  17. 17.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) warm water (c) sugar (d) a magnet
  18. 18.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
  19. 19.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) poke it with a finger (d) taste it
  20. 20.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
  21. 21.🧺 Which of these is needed for the dissolving test? (a) sugar (b) honey (c) a comb (d) a magnet
  22. 22.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) cold water (d) a comb
  23. 23.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  24. 24.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a crystal (d) a magnet
  26. 26.True or false: chalk powder does not dissolve in water. (a) True (b) False
  27. 27.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.🥄 Which of these does not dissolve in water? (a) sawdust (b) glucose powder (c) food colour (d) sugar
  29. 29.True or false: sugar in icy water dissolves slower. (a) False (b) True
  30. 30.True or false: sugar in warm water dissolves slower. (a) True (b) False
  31. 31.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a teaspoon (d) a comb
  32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a clock or timer (d) honey
  33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) a teaspoon (d) a clock or timer
  34. 34.True or false: sugar in warm water dissolves faster. (a) False (b) True
  35. 35.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  36. 36.⚖️ 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
  37. 37.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
  38. 38.🥄 Which of these dissolves in water? (a) cooking oil (b) glucose powder (c) chalk powder (d) sand
  39. 39.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  40. 40.True or false: sugar is not needed for the dissolving test. (a) False (b) True

Answer key

  1. some stays undissolved
  2. the water temperature
  3. False
  4. sugar
  5. a balloon
  6. not needed
  7. does not dissolve
  8. a clock or timer
  9. small pebbles
  10. False
  11. False
  12. False
  13. sugar
  14. True
  15. False
  16. cooking oil
  17. a magnet
  18. True
  19. look for leftover grains
  20. a grown-up
  21. sugar
  22. cold water
  23. faster
  24. does not dissolve
  25. a solution
  26. True
  27. dissolves in water
  28. sawdust
  29. True
  30. False
  31. a teaspoon
  32. honey
  33. a comb
  34. True
  35. needed
  36. we measure it
  37. faster
  38. glucose powder
  39. dissolves in water
  40. False

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