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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 711 · 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: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
  2. 2.True or false: sugar in warm water dissolves faster. (a) True (b) False
  3. 3.🛟 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
  4. 4.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet
  5. 5.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  6. 6.True or false: honey is not needed for the dissolving test. (a) False (b) True
  7. 7.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar in warm water (d) sugar stirred well
  8. 8.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) warm water (d) cotton wool
  9. 9.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  10. 10.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
  11. 11.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  12. 12.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  13. 13.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  14. 14.True or false: food colour does not dissolve in water. (a) True (b) False
  15. 15.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  16. 16.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) food colour (d) sugar
  17. 17.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  18. 18.🧺 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) cold water
  19. 19.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  20. 20.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the kind of sugar (c) the water temperature
  23. 23.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a solution (d) a magnet
  24. 24.True or false: sugar does not dissolve in water. (a) False (b) True
  25. 25.True or false: cold water is needed for the dissolving test. (a) False (b) True
  26. 26.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) cold water (d) honey
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) honey (d) a clock or timer
  28. 28.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  29. 29.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) table salt (d) glucose powder
  30. 30.True or false: small pebbles dissolves in water. (a) True (b) False
  31. 31.True or false: sugar in icy water dissolves faster. (a) True (b) False
  32. 32.True or false: powdered sugar dissolves slower. (a) False (b) True
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  34. 34.⚖️ 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
  35. 35.True or false: chalk powder does not dissolve in water. (a) True (b) False
  36. 36.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
  38. 38.⚖️ 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
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) sugar (d) cold water
  40. 40.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water

Answer key

  1. powdered sugar
  2. True
  3. a grown-up
  4. particles move faster
  5. faster
  6. True
  7. a big sugar cube
  8. cotton wool
  9. slower
  10. look for leftover grains
  11. slower
  12. dissolves in water
  13. not needed
  14. False
  15. faster
  16. sawdust
  17. True
  18. a mirror
  19. False
  20. needed
  21. False
  22. the kind of sugar
  23. a solution
  24. False
  25. True
  26. cold water
  27. honey
  28. faster
  29. cooking oil
  30. False
  31. False
  32. False
  33. we keep it the same
  34. we measure it
  35. True
  36. needed
  37. we keep it the same
  38. False
  39. a magnet
  40. dissolves in water

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