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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 783 · 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.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  2. 2.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
  3. 3.⚖️ 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 keep it the same (c) we change it
  4. 4.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) warm water (c) a balloon (d) two clear glasses
  5. 5.True or false: cooking oil does not dissolve in water. (a) False (b) True
  6. 6.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) neither of them (d) both the same
  7. 7.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) cooking oil (d) table salt
  9. 9.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  10. 10.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  11. 11.⚖️ 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
  12. 12.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) table salt (d) small pebbles
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
  14. 14.True or false: warm water is needed for the dissolving test. (a) True (b) False
  15. 15.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a magnet (c) a balloon (d) sugar
  16. 16.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) sand (d) baking soda
  17. 17.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  18. 18.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  19. 19.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) small pebbles (d) sugar
  20. 20.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) cooking oil (d) glucose powder
  21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it turns blue (d) it dissolves
  22. 22.True or false: glucose powder does not dissolve in water. (a) False (b) True
  23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) warm water (c) a teaspoon (d) cold water
  24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
  25. 25.True or false: glucose powder dissolves in water. (a) False (b) True
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
  27. 27.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  28. 28.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  29. 29.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  30. 30.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  31. 31.⚖️ 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
  32. 32.True or false: a big sugar cube dissolves slower. (a) False (b) True
  33. 33.⚖️ 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
  34. 34.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) a mirror (d) cold water
  35. 35.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  36. 36.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) taste it (d) poke it with a finger
  37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) a teaspoon (d) sugar
  38. 38.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) a mirror (d) sugar
  40. 40.⚖️ 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) the water temperature (d) the kind of sugar

Answer key

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

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