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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 273 · 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.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  2. 2.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
  3. 3.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) cooking oil (d) table salt
  4. 4.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  5. 5.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
  6. 6.⚖️ 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 water (b) time to dissolve (c) the amount of sugar (d) the water temperature
  7. 7.⚖️ 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 measure it (c) we keep it the same
  8. 8.True or false: honey is not needed for the dissolving test. (a) False (b) True
  9. 9.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  10. 10.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  11. 11.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  12. 12.True or false: a magnet is needed for the dissolving test. (a) False (b) True
  13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) sugar (d) a magnet
  14. 14.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  15. 15.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  16. 16.🔍 Which is the odd one out? (a) small pebbles (b) cooking oil (c) sawdust (d) table salt
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  18. 18.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a clock or timer (c) a balloon (d) cold water
  19. 19.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a magnet (d) a rainbow
  20. 20.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
  21. 21.True or false: baking soda dissolves in water. (a) True (b) False
  22. 22.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
  24. 24.🔍 Which is the odd one out? (a) cooking oil (b) chalk powder (c) small pebbles (d) baking soda
  25. 25.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it sank as sand (d) it vanished for ever
  26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) a comb (d) warm water
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) cotton wool (d) two clear glasses
  31. 31.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) sugar (b) food colour (c) glucose powder (d) sand
  33. 33.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) powdered sugar
  34. 34.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) baking soda (d) small pebbles
  35. 35.True or false: powdered sugar dissolves slower. (a) False (b) True
  36. 36.True or false: powdered sugar dissolves faster. (a) False (b) True
  37. 37.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  38. 38.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  39. 39.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) sawdust (d) glucose powder
  40. 40.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water

Answer key

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

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