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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 383 · 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? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
  2. 2.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  3. 3.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  4. 4.⚖️ 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 keep it the same (c) we measure it
  5. 5.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) glucose powder (d) small pebbles
  6. 6.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a solution (d) a rainbow
  7. 7.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
  8. 8.True or false: sugar stirred well dissolves faster. (a) True (b) False
  9. 9.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) sugar (d) honey
  10. 10.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) glucose powder (d) sand
  11. 11.🥄 Which of these does not dissolve in water? (a) sand (b) table salt (c) sugar (d) glucose powder
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  13. 13.True or false: powdered sugar dissolves faster. (a) False (b) True
  14. 14.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  15. 15.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
  17. 17.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  18. 18.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) a magnet (d) warm water
  19. 19.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  20. 20.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
  21. 21.True or false: chalk powder does not dissolve in water. (a) False (b) True
  22. 22.🥄 Which of these does not dissolve in water? (a) sawdust (b) table salt (c) food colour (d) baking soda
  23. 23.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  24. 24.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cold water (c) two clear glasses (d) cotton wool
  25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) cooking oil (d) baking soda
  27. 27.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  28. 28.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  29. 29.🥄 Which of these does not dissolve in water? (a) small pebbles (b) glucose powder (c) sugar (d) baking soda
  30. 30.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  31. 31.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) the water temperature (c) time to dissolve
  33. 33.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) food colour (d) sand
  34. 34.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  35. 35.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) the water turns solid (c) some stays undissolved (d) all of it dissolves
  36. 36.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a clock or timer (c) a comb (d) a balloon
  37. 37.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  38. 38.🥄 Which of these dissolves in water? (a) sugar (b) sand (c) small pebbles (d) sawdust
  39. 39.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
  40. 40.True or false: table salt does not dissolve in water. (a) True (b) False

Answer key

  1. we keep it the same
  2. faster
  3. True
  4. we keep it the same
  5. glucose powder
  6. a solution
  7. let the water evaporate
  8. True
  9. sugar
  10. sand
  11. sand
  12. True
  13. True
  14. not needed
  15. False
  16. True
  17. slower
  18. warm water
  19. needed
  20. sugar in icy water
  21. True
  22. sawdust
  23. does not dissolve
  24. cotton wool
  25. False
  26. baking soda
  27. not needed
  28. not needed
  29. small pebbles
  30. needed
  31. sugar left unstirred
  32. the kind of sugar
  33. food colour
  34. dissolves in water
  35. some stays undissolved
  36. a clock or timer
  37. False
  38. sugar
  39. a grown-up
  40. False

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