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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 613 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) cold water (d) a teaspoon
  2. 2.True or false: food colour does not dissolve in water. (a) True (b) False
  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 water (b) the kind of sugar (c) the stirring (d) the water temperature
  4. 4.True or false: baking soda dissolves in water. (a) True (b) False
  5. 5.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  7. 7.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) table salt (d) small pebbles
  8. 8.True or false: sugar in icy water dissolves faster. (a) False (b) True
  9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) a clock or timer (d) cold water
  10. 10.True or false: sugar in warm water dissolves slower. (a) True (b) False
  11. 11.True or false: powdered sugar dissolves slower. (a) False (b) True
  12. 12.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  13. 13.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  14. 14.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  15. 15.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the sugar turns to salt (d) the water turns solid
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the amount of water (c) time to dissolve (d) the amount of sugar
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
  18. 18.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a comb (c) a balloon (d) a magnet
  19. 19.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  20. 20.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) honey (c) cold water (d) a clock or timer
  21. 21.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
  23. 23.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  24. 24.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  25. 25.⚖️ 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) False (b) True
  26. 26.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) a balloon (d) warm water
  27. 27.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) two clear glasses (d) cotton wool
  28. 28.🥄 Which of these does not dissolve in water? (a) cooking oil (b) baking soda (c) food colour (d) sugar
  29. 29.True or false: small pebbles dissolves in water. (a) True (b) False
  30. 30.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a comb (c) a clock or timer (d) two clear glasses
  31. 31.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) warm water (d) honey
  33. 33.True or false: sand does not dissolve in water. (a) True (b) False
  34. 34.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
  35. 35.True or false: table salt dissolves in water. (a) True (b) False
  36. 36.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it became air (d) it vanished for ever
  37. 37.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) let the water evaporate (d) add more water
  38. 38.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cold water (c) a mirror (d) sugar
  39. 39.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) a teaspoon (d) cotton wool

Answer key

  1. a balloon
  2. False
  3. the water temperature
  4. True
  5. needed
  6. True
  7. small pebbles
  8. False
  9. a comb
  10. False
  11. False
  12. faster
  13. not needed
  14. False
  15. some stays undissolved
  16. time to dissolve
  17. False
  18. a clock or timer
  19. slower
  20. honey
  21. dissolves in water
  22. we measure it
  23. needed
  24. dissolves in water
  25. False
  26. a balloon
  27. two clear glasses
  28. cooking oil
  29. False
  30. a comb
  31. not needed
  32. honey
  33. True
  34. True
  35. True
  36. it spread in the water
  37. let the water evaporate
  38. a mirror
  39. not needed
  40. cotton wool

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