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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 773 · 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.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
  2. 2.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
  3. 3.⚖️ 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 change it (c) we measure it
  4. 4.True or false: a big sugar cube dissolves faster. (a) True (b) False
  5. 5.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a clock or timer (d) a comb
  6. 6.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar left unstirred
  7. 7.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
  8. 8.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
  10. 10.⚖️ 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 amount of sugar (c) time to dissolve (d) the water temperature
  11. 11.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  12. 12.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
  13. 13.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) chalk powder (d) glucose powder
  14. 14.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) a balloon (d) sugar
  15. 15.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  16. 16.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in icy water (d) sugar in warm water
  17. 17.True or false: glucose powder does not dissolve in water. (a) True (b) False
  18. 18.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
  19. 19.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) cooking oil (b) chalk powder (c) glucose powder (d) small pebbles
  21. 21.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
  22. 22.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  23. 23.True or false: powdered sugar dissolves faster. (a) False (b) True
  24. 24.True or false: sugar in warm water dissolves slower. (a) False (b) True
  25. 25.True or false: sugar is needed for the dissolving test. (a) False (b) True
  26. 26.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  27. 27.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a comb (d) cold water
  28. 28.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
  29. 29.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  30. 30.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  31. 31.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) sugar (d) small pebbles
  32. 32.True or false: a comb is needed for the dissolving test. (a) False (b) True
  33. 33.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  34. 34.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
  35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a clock or timer (c) warm water (d) cold water
  36. 36.True or false: warm water is needed for the dissolving test. (a) False (b) True
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
  38. 38.🥄 Which of these does not dissolve in water? (a) sand (b) glucose powder (c) sugar (d) baking soda
  39. 39.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) cooking oil (d) sand
  40. 40.True or false: a magnet is needed for the dissolving test. (a) False (b) True

Answer key

  1. it spread in the water
  2. a big sugar cube
  3. we keep it the same
  4. False
  5. a clock or timer
  6. sugar left unstirred
  7. look for leftover grains
  8. faster
  9. we measure it
  10. the water temperature
  11. dissolves in water
  12. faster
  13. chalk powder
  14. sugar
  15. not needed
  16. sugar in icy water
  17. False
  18. a grown-up
  19. False
  20. glucose powder
  21. let the water evaporate
  22. slower
  23. True
  24. False
  25. True
  26. True
  27. cold water
  28. powdered sugar
  29. dissolves in water
  30. faster
  31. sugar
  32. False
  33. not needed
  34. sugar stirred well
  35. a magnet
  36. True
  37. we keep it the same
  38. sand
  39. baking soda
  40. False

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