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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 713 · 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 is the odd one out? (a) food colour (b) table salt (c) glucose powder (d) sawdust
  2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a clock or timer (c) cold water (d) sugar
  3. 3.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  4. 4.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  5. 5.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
  7. 7.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
  8. 8.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  9. 9.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a balloon (d) warm water
  11. 11.⚖️ 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 change it (c) we keep it the same
  12. 12.⚖️ 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
  13. 13.🥄 Which of these does not dissolve in water? (a) sawdust (b) glucose powder (c) sugar (d) food colour
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) two clear glasses (c) warm water (d) a teaspoon
  15. 15.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  16. 16.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  17. 17.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  18. 18.True or false: sugar is needed for the dissolving test. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) glucose powder (d) food colour
  20. 20.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  21. 21.🥄 Which of these does not dissolve in water? (a) glucose powder (b) chalk powder (c) baking soda (d) table salt
  22. 22.True or false: table salt does not dissolve in water. (a) False (b) True
  23. 23.True or false: sugar in warm water dissolves slower. (a) False (b) True
  24. 24.🥄 Which of these does not dissolve in water? (a) table salt (b) small pebbles (c) food colour (d) sugar
  25. 25.🔍 Which is the odd one out? (a) sand (b) baking soda (c) small pebbles (d) cooking oil
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
  27. 27.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) food colour (d) glucose powder
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) time to dissolve (c) the amount of sugar (d) the amount of water
  29. 29.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  30. 30.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
  31. 31.🥄 Which of these dissolves in water? (a) cooking oil (b) food colour (c) sawdust (d) sand
  32. 32.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
  33. 33.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) honey (d) sugar
  34. 34.⚖️ 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
  35. 35.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) taste it (d) poke it with a finger
  36. 36.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  37. 37.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  38. 38.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  39. 39.True or false: sugar in warm water dissolves faster. (a) False (b) True
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) sugar (d) honey

Answer key

  1. sawdust
  2. cotton wool
  3. does not dissolve
  4. faster
  5. True
  6. we keep it the same
  7. False
  8. does not dissolve
  9. faster
  10. a balloon
  11. we keep it the same
  12. we keep it the same
  13. sawdust
  14. a magnet
  15. not needed
  16. faster
  17. slower
  18. True
  19. cooking oil
  20. dissolves in water
  21. chalk powder
  22. False
  23. False
  24. small pebbles
  25. baking soda
  26. we change it
  27. small pebbles
  28. the water temperature
  29. False
  30. sugar in icy water
  31. food colour
  32. a grown-up
  33. sugar
  34. True
  35. look for leftover grains
  36. False
  37. slower
  38. not needed
  39. True
  40. honey

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