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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 123 · 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) glucose powder (b) sand (c) food colour (d) baking soda
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) time to dissolve (c) the amount of water (d) the water temperature
  4. 4.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  5. 5.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) the water turns solid (d) all of it dissolves
  6. 6.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  7. 7.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) sand (d) baking soda
  8. 8.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) sugar (d) small pebbles
  9. 9.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  10. 10.🥄 Which of these dissolves in water? (a) cooking oil (b) food colour (c) small pebbles (d) chalk powder
  11. 11.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  12. 12.True or false: glucose powder does not dissolve in water. (a) False (b) True
  13. 13.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) cotton wool (d) sugar
  14. 14.True or false: powdered sugar dissolves slower. (a) False (b) True
  15. 15.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a mirror (c) cotton wool (d) a magnet
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
  17. 17.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  18. 18.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) particles move faster (d) sugar likes the dark
  19. 19.🔍 Which is the odd one out? (a) small pebbles (b) baking soda (c) sawdust (d) sand
  20. 20.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
  21. 21.True or false: chalk powder does not dissolve in water. (a) False (b) True
  22. 22.⚖️ 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
  23. 23.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  24. 24.True or false: sugar in warm water dissolves faster. (a) False (b) True
  25. 25.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) sugar (d) honey
  26. 26.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  27. 27.True or false: sugar is needed for the dissolving test. (a) True (b) False
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  29. 29.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) warm water (c) a comb (d) two clear glasses
  30. 30.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  31. 31.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  33. 33.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) sugar (c) two clear glasses (d) warm water
  35. 35.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a solution (d) a crystal
  36. 36.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
  38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a clock or timer (c) sugar (d) two clear glasses
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
  40. 40.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) cold water (d) a comb

Answer key

  1. sand
  2. True
  3. the water temperature
  4. False
  5. some stays undissolved
  6. faster
  7. sand
  8. sugar
  9. False
  10. food colour
  11. does not dissolve
  12. False
  13. cotton wool
  14. False
  15. warm water
  16. False
  17. False
  18. particles move faster
  19. baking soda
  20. look for leftover grains
  21. True
  22. we change it
  23. does not dissolve
  24. True
  25. sugar
  26. not needed
  27. True
  28. True
  29. a comb
  30. faster
  31. not needed
  32. we keep it the same
  33. faster
  34. cotton wool
  35. a solution
  36. needed
  37. we keep it the same
  38. a magnet
  39. False
  40. cold water

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