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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 589 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
  2. 2.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a magnet (c) sugar (d) a clock or timer
  3. 3.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  4. 4.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
  5. 5.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar left unstirred (d) powdered sugar
  6. 6.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  7. 7.True or false: sugar in warm water dissolves faster. (a) True (b) False
  8. 8.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
  10. 10.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  11. 11.True or false: a mirror is needed for the dissolving test. (a) False (b) True
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a mirror (d) a teaspoon
  13. 13.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
  14. 14.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  15. 15.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) stir it more (d) keep it in a fridge
  16. 16.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) a big sugar cube (d) powdered sugar
  17. 17.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) sugar (c) cold water (d) two clear glasses
  18. 18.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  19. 19.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
  20. 20.⚖️ 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 sugar (b) the stirring (c) the amount of water (d) the water temperature
  21. 21.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
  22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) sugar (c) a clock or timer (d) two clear glasses
  23. 23.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  24. 24.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) chalk powder (d) baking soda
  26. 26.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) glucose powder (d) sand
  27. 27.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  28. 28.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) small pebbles (d) sugar
  29. 29.True or false: sugar stirred well dissolves slower. (a) False (b) True
  30. 30.True or false: table salt dissolves in water. (a) True (b) False
  31. 31.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  32. 32.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
  33. 33.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) sand (d) baking soda
  35. 35.True or false: powdered sugar dissolves faster. (a) True (b) False
  36. 36.🥄 Which of these dissolves in water? (a) small pebbles (b) baking soda (c) chalk powder (d) sawdust
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the kind of sugar (c) time to dissolve (d) the water temperature
  38. 38.True or false: chalk powder does not dissolve in water. (a) False (b) True
  39. 39.⚖️ 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
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same

Answer key

  1. False
  2. a magnet
  3. does not dissolve
  4. some stays undissolved
  5. sugar left unstirred
  6. slower
  7. True
  8. False
  9. True
  10. True
  11. False
  12. a mirror
  13. faster
  14. does not dissolve
  15. let the water evaporate
  16. a big sugar cube
  17. a balloon
  18. needed
  19. look for leftover grains
  20. the water temperature
  21. True
  22. honey
  23. False
  24. False
  25. baking soda
  26. glucose powder
  27. needed
  28. sugar
  29. False
  30. True
  31. slower
  32. powdered sugar
  33. dissolves in water
  34. sand
  35. True
  36. baking soda
  37. time to dissolve
  38. True
  39. True
  40. we keep it the same

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