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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 824 · 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.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
  2. 2.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
  4. 4.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) warm water (d) a teaspoon
  5. 5.⚖️ 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 change it (c) we keep it the same
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
  7. 7.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
  8. 8.True or false: sugar in icy water dissolves faster. (a) True (b) False
  9. 9.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  10. 10.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
  11. 11.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
  12. 12.True or false: food colour does not dissolve in water. (a) False (b) True
  13. 13.True or false: warm water is needed for the dissolving test. (a) False (b) True
  14. 14.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) a magnet (d) cold water
  15. 15.True or false: cooking oil dissolves in water. (a) True (b) False
  16. 16.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) a magnet (d) warm water
  17. 17.🥄 Which of these does not dissolve in water? (a) chalk powder (b) table salt (c) baking soda (d) food colour
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) two clear glasses (d) a magnet
  19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) cotton wool (d) a teaspoon
  20. 20.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  21. 21.True or false: sugar in icy water dissolves slower. (a) False (b) True
  22. 22.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) glucose powder (d) small pebbles
  23. 23.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
  24. 24.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) warm water (c) a balloon (d) sugar
  25. 25.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  26. 26.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  27. 27.⚖️ 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
  28. 28.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  29. 29.True or false: sugar stirred well dissolves slower. (a) False (b) True
  30. 30.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  31. 31.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar stirred well (d) sugar in warm water
  32. 32.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  33. 33.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  34. 34.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the water temperature (c) time to dissolve (d) the amount of sugar
  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 change it (b) we keep it the same (c) we measure it
  37. 37.True or false: small pebbles dissolves in water. (a) True (b) False
  38. 38.True or false: table salt does not dissolve in water. (a) True (b) False
  39. 39.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a teaspoon (d) a balloon
  40. 40.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) cooking oil (d) glucose powder

Answer key

  1. a grown-up
  2. does not dissolve
  3. it spread in the water
  4. honey
  5. we keep it the same
  6. we change it
  7. look for leftover grains
  8. False
  9. does not dissolve
  10. particles move faster
  11. sugar in icy water
  12. False
  13. True
  14. cold water
  15. False
  16. warm water
  17. chalk powder
  18. a magnet
  19. cotton wool
  20. needed
  21. True
  22. small pebbles
  23. sugar stirred well
  24. a balloon
  25. slower
  26. False
  27. we keep it the same
  28. faster
  29. False
  30. slower
  31. a big sugar cube
  32. faster
  33. faster
  34. does not dissolve
  35. time to dissolve
  36. we measure it
  37. False
  38. False
  39. a teaspoon
  40. glucose powder

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