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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 84 · 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.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) small pebbles (d) glucose powder
  2. 2.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  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.True or false: cold water is needed for the dissolving test. (a) True (b) False
  5. 5.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  6. 6.True or false: sugar in icy water dissolves slower. (a) False (b) True
  7. 7.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) sawdust (d) table salt
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
  10. 10.True or false: a comb is needed for the dissolving test. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) chalk powder (d) food colour
  12. 12.True or false: sugar in warm water dissolves faster. (a) True (b) False
  13. 13.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  14. 14.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  15. 15.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
  16. 16.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
  17. 17.True or false: sugar does not dissolve in water. (a) False (b) True
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
  19. 19.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  20. 20.🥄 Which of these does not dissolve in water? (a) sugar (b) chalk powder (c) baking soda (d) table salt
  21. 21.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a clock or timer (c) two clear glasses (d) honey
  22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the amount of water (c) the water temperature (d) time to dissolve
  24. 24.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) food colour (d) sawdust
  25. 25.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
  26. 26.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  27. 27.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) food colour (d) glucose powder
  28. 28.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) sawdust (d) baking soda
  29. 29.True or false: a big sugar cube dissolves slower. (a) True (b) False
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a comb (c) a clock or timer (d) warm water
  31. 31.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
  33. 33.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
  34. 34.True or false: sugar stirred well dissolves slower. (a) True (b) False
  35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) a clock or timer (d) warm water
  36. 36.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  37. 37.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) food colour (d) cooking oil
  38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) cotton wool (d) sugar
  39. 39.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) cold water (d) cotton wool
  40. 40.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar in warm water

Answer key

  1. small pebbles
  2. faster
  3. False
  4. True
  5. needed
  6. True
  7. dissolves in water
  8. table salt
  9. True
  10. False
  11. food colour
  12. True
  13. False
  14. faster
  15. sugar stirred well
  16. look for leftover grains
  17. False
  18. False
  19. needed
  20. chalk powder
  21. honey
  22. powdered sugar
  23. time to dissolve
  24. sawdust
  25. a grown-up
  26. slower
  27. cooking oil
  28. sawdust
  29. True
  30. a comb
  31. True
  32. we keep it the same
  33. faster
  34. False
  35. a magnet
  36. slower
  37. cooking oil
  38. cotton wool
  39. cotton wool
  40. sugar in warm water

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