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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 362 · 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.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  2. 2.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
  3. 3.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar stirred well (d) sugar in warm water
  4. 4.🔍 Which is the odd one out? (a) small pebbles (b) food colour (c) table salt (d) sugar
  5. 5.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a clock or timer (c) cotton wool (d) a mirror
  6. 6.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) warm water (c) two clear glasses (d) a teaspoon
  7. 7.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sawdust (d) food colour
  8. 8.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  9. 9.True or false: chalk powder dissolves in water. (a) True (b) False
  10. 10.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  11. 11.⚖️ 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 keep it the same (c) we change it
  12. 12.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) sugar (d) cooking oil
  13. 13.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) cooking oil (d) baking soda
  14. 14.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) sugar (d) a balloon
  15. 15.True or false: sawdust dissolves in water. (a) True (b) False
  16. 16.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) cold water (d) a balloon
  17. 17.True or false: sugar stirred well dissolves slower. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) food colour (b) sugar (c) chalk powder (d) glucose powder
  19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) time to dissolve (c) the amount of sugar (d) the water temperature
  20. 20.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  21. 21.⚖️ 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
  22. 22.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a crystal (d) a rainbow
  23. 23.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
  24. 24.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) stir it more (d) add more water
  25. 25.True or false: sugar in warm water dissolves slower. (a) True (b) False
  26. 26.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
  27. 27.🔮 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
  28. 28.True or false: sugar is needed for the dissolving test. (a) False (b) True
  29. 29.True or false: sugar dissolves in water. (a) False (b) True
  30. 30.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  31. 31.True or false: baking soda dissolves in water. (a) False (b) True
  32. 32.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  33. 33.True or false: table salt does not dissolve in water. (a) False (b) True
  34. 34.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  36. 36.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) small pebbles (d) sugar
  37. 37.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  38. 38.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
  39. 39.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) small pebbles (d) food colour
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False

Answer key

  1. dissolves in water
  2. a grown-up
  3. sugar left unstirred
  4. small pebbles
  5. a clock or timer
  6. a mirror
  7. food colour
  8. not needed
  9. False
  10. not needed
  11. we change it
  12. sugar
  13. cooking oil
  14. sugar
  15. False
  16. a balloon
  17. False
  18. chalk powder
  19. the water temperature
  20. needed
  21. True
  22. a solution
  23. True
  24. let the water evaporate
  25. False
  26. some stays undissolved
  27. powdered sugar
  28. True
  29. True
  30. slower
  31. True
  32. faster
  33. False
  34. look for leftover grains
  35. we keep it the same
  36. small pebbles
  37. False
  38. faster
  39. food colour
  40. False

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