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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 730 · 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) baking soda (b) sugar (c) glucose powder (d) sawdust
  2. 2.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  3. 3.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  4. 4.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it floats up (d) it settles at the bottom
  5. 5.True or false: a big sugar cube dissolves slower. (a) False (b) True
  6. 6.🛟 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
  7. 7.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  8. 8.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar in warm water
  9. 9.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar left unstirred
  10. 10.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  11. 11.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  12. 12.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) cotton wool (d) sugar
  13. 13.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) powdered sugar (d) neither of them
  14. 14.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
  15. 15.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  16. 16.True or false: table salt does not dissolve in water. (a) False (b) True
  17. 17.True or false: glucose powder does not dissolve in water. (a) False (b) True
  18. 18.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
  19. 19.True or false: powdered sugar dissolves faster. (a) False (b) True
  20. 20.⚖️ 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
  21. 21.True or false: sugar in warm water dissolves slower. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) chalk powder (d) table salt
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  24. 24.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
  25. 25.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  26. 26.True or false: sugar in icy water dissolves faster. (a) False (b) True
  27. 27.🧺 Which of these is needed for the dissolving test? (a) a comb (b) honey (c) a balloon (d) two clear glasses
  28. 28.🧺 Which of these is needed for the dissolving test? (a) honey (b) a teaspoon (c) a balloon (d) a magnet
  29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) a balloon (d) two clear glasses
  30. 30.True or false: cold water is needed for the dissolving test. (a) False (b) True
  31. 31.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) honey (d) a teaspoon
  32. 32.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  33. 33.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) chalk powder (d) glucose powder
  34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
  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 amount of sugar (c) time to dissolve (d) the kind of sugar
  36. 36.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  37. 37.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  38. 38.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
  39. 39.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  40. 40.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) sugar (d) cooking oil

Answer key

  1. sawdust
  2. True
  3. slower
  4. it settles at the bottom
  5. True
  6. a grown-up
  7. dissolves in water
  8. sugar in warm water
  9. sugar left unstirred
  10. True
  11. faster
  12. sugar
  13. powdered sugar
  14. look for leftover grains
  15. does not dissolve
  16. False
  17. False
  18. let the water evaporate
  19. True
  20. False
  21. False
  22. chalk powder
  23. we keep it the same
  24. sugar in icy water
  25. slower
  26. False
  27. two clear glasses
  28. a teaspoon
  29. a balloon
  30. True
  31. honey
  32. False
  33. glucose powder
  34. False
  35. time to dissolve
  36. needed
  37. faster
  38. powdered sugar
  39. False
  40. cooking oil

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