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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 318 · 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: powdered sugar dissolves faster. (a) False (b) True
  2. 2.True or false: small pebbles does not dissolve in water. (a) False (b) True
  3. 3.⚖️ 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
  4. 4.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) glucose powder (d) sand
  5. 5.🥄 Which of these does not dissolve in water? (a) sawdust (b) baking soda (c) food colour (d) table salt
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
  7. 7.⚖️ 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) the kind of sugar (d) the water temperature
  8. 8.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) glucose powder (d) small pebbles
  9. 9.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) sawdust (d) sugar
  10. 10.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  11. 11.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
  12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue
  13. 13.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
  14. 14.True or false: sugar in warm water dissolves slower. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) sand (b) baking soda (c) sawdust (d) small pebbles
  16. 16.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  17. 17.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
  18. 18.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  19. 19.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  20. 20.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  21. 21.⚖️ 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) True (b) False
  22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) sugar (d) a teaspoon
  23. 23.🔍 Which is the odd one out? (a) table salt (b) chalk powder (c) sugar (d) baking soda
  24. 24.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
  25. 25.True or false: sand dissolves in water. (a) True (b) False
  26. 26.🥄 Which of these dissolves in water? (a) cooking oil (b) food colour (c) sand (d) chalk powder
  27. 27.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) two clear glasses (d) cotton wool
  29. 29.True or false: baking soda does not dissolve in water. (a) False (b) True
  30. 30.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
  31. 31.True or false: sawdust dissolves in water. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) glucose powder (b) sawdust (c) baking soda (d) table salt
  33. 33.⚖️ 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
  34. 34.True or false: table salt does not dissolve in water. (a) False (b) True
  35. 35.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) warm water (d) a mirror
  36. 36.🔍 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
  37. 37.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) cold water (d) a magnet
  38. 38.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  39. 39.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) sugar left unstirred (d) a big sugar cube
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) honey (d) sugar

Answer key

  1. True
  2. True
  3. True
  4. sand
  5. sawdust
  6. we change it
  7. the water temperature
  8. glucose powder
  9. sugar
  10. needed
  11. look for leftover grains
  12. it settles at the bottom
  13. some stays undissolved
  14. False
  15. baking soda
  16. False
  17. a grown-up
  18. needed
  19. needed
  20. does not dissolve
  21. True
  22. a comb
  23. chalk powder
  24. powdered sugar
  25. False
  26. food colour
  27. slower
  28. cotton wool
  29. False
  30. True
  31. False
  32. sawdust
  33. False
  34. False
  35. warm water
  36. let the water evaporate
  37. a magnet
  38. dissolves in water
  39. sugar stirred well
  40. honey

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