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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 615 · 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 is needed for the dissolving test? (a) a comb (b) a mirror (c) a balloon (d) sugar
  2. 2.⚖️ 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) True (b) False
  3. 3.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
  4. 4.🥄 Which of these dissolves in water? (a) food colour (b) cooking oil (c) sand (d) sawdust
  5. 5.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) warm water (c) a teaspoon (d) a clock or timer
  7. 7.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a crystal (d) a magnet
  8. 8.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) small pebbles (d) glucose powder
  9. 9.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) sand (d) baking soda
  10. 10.🥄 Which of these does not dissolve in water? (a) sugar (b) cooking oil (c) table salt (d) glucose powder
  11. 11.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar in warm water
  12. 12.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) a big sugar cube (d) powdered sugar
  13. 13.⚖️ 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
  14. 14.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar left unstirred (d) sugar in warm water
  15. 15.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  16. 16.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  17. 17.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  18. 18.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) not at all (d) slower
  19. 19.⚖️ 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
  20. 20.True or false: sugar dissolves in water. (a) False (b) True
  21. 21.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  22. 22.True or false: sugar in icy water dissolves faster. (a) False (b) True
  23. 23.True or false: baking soda dissolves in water. (a) False (b) True
  24. 24.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  25. 25.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
  26. 26.⚖️ 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
  27. 27.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it vanished for ever (d) it spread in the water
  28. 28.True or false: sand dissolves in water. (a) True (b) False
  29. 29.⚖️ 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) the stirring (c) time to dissolve (d) the water temperature
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) cold water (d) a balloon
  31. 31.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a mirror (d) cold water
  32. 32.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  33. 33.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker
  34. 34.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  35. 35.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  37. 37.🔍 Which is the odd one out? (a) table salt (b) chalk powder (c) small pebbles (d) cooking oil
  38. 38.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  39. 39.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  40. 40.True or false: cooking oil does not dissolve in water. (a) False (b) True

Answer key

  1. sugar
  2. False
  3. a grown-up
  4. food colour
  5. not needed
  6. honey
  7. a solution
  8. glucose powder
  9. baking soda
  10. cooking oil
  11. sugar in warm water
  12. a big sugar cube
  13. we measure it
  14. sugar left unstirred
  15. needed
  16. dissolves in water
  17. False
  18. faster
  19. False
  20. True
  21. does not dissolve
  22. False
  23. True
  24. False
  25. look for leftover grains
  26. we keep it the same
  27. it spread in the water
  28. False
  29. the water temperature
  30. a balloon
  31. cold water
  32. needed
  33. particles move faster
  34. slower
  35. True
  36. needed
  37. table salt
  38. faster
  39. slower
  40. True

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