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Dissolving Experiment Worksheet: Warm and Cold Water

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

Answer key

  1. a balloon
  2. does not dissolve
  3. chalk powder
  4. baking soda
  5. chalk powder
  6. slower
  7. a solution
  8. False
  9. False
  10. False
  11. two clear glasses
  12. a mirror
  13. some stays undissolved
  14. particles move faster
  15. a comb
  16. sugar left unstirred
  17. a comb
  18. the water temperature
  19. faster
  20. True
  21. it settles at the bottom
  22. time to dissolve
  23. False
  24. a grown-up
  25. False
  26. sawdust
  27. look for leftover grains
  28. sugar
  29. we keep it the same
  30. a balloon
  31. needed
  32. needed
  33. not needed
  34. True
  35. True
  36. dissolves in water
  37. cold water
  38. True
  39. True
  40. does not dissolve

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