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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 60 · 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? Which of these is kept the same? (a) the stirring (b) time to dissolve (c) the water temperature
  2. 2.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  3. 3.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
  4. 4.⚖️ 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 keep it the same (c) we change it
  5. 5.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) food colour (d) sawdust
  6. 6.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
  7. 7.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) sugar (d) cotton wool
  8. 8.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
  10. 10.True or false: a big sugar cube dissolves faster. (a) True (b) False
  11. 11.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  12. 12.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) cold water is wet (d) sugar likes the dark
  13. 13.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) cotton wool (d) warm water
  15. 15.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) a teaspoon (d) honey
  16. 16.True or false: honey is needed for the dissolving test. (a) True (b) False
  17. 17.True or false: table salt dissolves in water. (a) True (b) False
  18. 18.True or false: sugar in icy water dissolves faster. (a) True (b) False
  19. 19.True or false: a big sugar cube dissolves slower. (a) True (b) False
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
  21. 21.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  22. 22.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
  23. 23.🥄 Which of these dissolves in water? (a) cooking oil (b) baking soda (c) small pebbles (d) sawdust
  24. 24.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it
  25. 25.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) a magnet (d) a clock or timer
  27. 27.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it turns blue (d) it settles at the bottom
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) a balloon (d) two clear glasses
  29. 29.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  30. 30.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  31. 31.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a solution (d) a crystal
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) time to dissolve (c) the water temperature
  33. 33.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  35. 35.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) small pebbles (d) glucose powder
  36. 36.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) cooking oil (d) food colour
  37. 37.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  38. 38.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  39. 39.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  40. 40.True or false: sugar is not needed for the dissolving test. (a) True (b) False

Answer key

  1. the stirring
  2. slower
  3. sugar left unstirred
  4. we measure it
  5. food colour
  6. a grown-up
  7. cotton wool
  8. False
  9. powdered sugar
  10. False
  11. faster
  12. particles move faster
  13. slower
  14. cotton wool
  15. honey
  16. False
  17. True
  18. False
  19. True
  20. we keep it the same
  21. needed
  22. some stays undissolved
  23. baking soda
  24. look for leftover grains
  25. faster
  26. a magnet
  27. it settles at the bottom
  28. a balloon
  29. needed
  30. slower
  31. a solution
  32. the amount of sugar
  33. dissolves in water
  34. needed
  35. glucose powder
  36. cooking oil
  37. does not dissolve
  38. True
  39. not needed
  40. False

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