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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 231 · 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.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) cold water is wet (d) sugar likes the dark
  2. 2.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  3. 3.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) two clear glasses (c) a comb (d) a teaspoon
  4. 4.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) glucose powder (d) chalk powder
  5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) time to dissolve (c) the water temperature
  6. 6.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
  7. 7.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) food colour (d) table salt
  8. 8.True or false: a comb is needed for the dissolving test. (a) True (b) False
  9. 9.🔍 Which is the odd one out? (a) sugar (b) sand (c) chalk powder (d) cooking oil
  10. 10.True or false: baking soda does not dissolve in water. (a) False (b) True
  11. 11.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) cold water (d) a balloon
  12. 12.True or false: a big sugar cube dissolves slower. (a) False (b) True
  13. 13.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) baking soda (b) cooking oil (c) small pebbles (d) sawdust
  15. 15.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cold water (c) a magnet (d) honey
  16. 16.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
  18. 18.⚖️ 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
  19. 19.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  20. 20.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) sugar (d) sand
  21. 21.True or false: chalk powder dissolves in water. (a) False (b) True
  22. 22.True or false: sugar in icy water dissolves faster. (a) False (b) True
  23. 23.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
  24. 24.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) a big sugar cube
  25. 25.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  26. 26.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
  27. 27.🔮 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
  28. 28.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) a comb (d) sugar
  29. 29.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) a clock or timer (c) a teaspoon (d) cold water
  31. 31.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  32. 32.True or false: a big sugar cube dissolves faster. (a) False (b) True
  33. 33.🥄 Which of these dissolves in water? (a) sand (b) table salt (c) chalk powder (d) small pebbles
  34. 34.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  35. 35.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  36. 36.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) chalk powder (d) sawdust
  37. 37.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  38. 38.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar in icy water (d) sugar left unstirred
  39. 39.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  40. 40.🔍 Which is the odd one out? (a) table salt (b) sugar (c) glucose powder (d) cooking oil

Answer key

  1. particles move faster
  2. not needed
  3. a comb
  4. chalk powder
  5. the amount of sugar
  6. powdered sugar
  7. small pebbles
  8. False
  9. sugar
  10. False
  11. a balloon
  12. True
  13. True
  14. baking soda
  15. cold water
  16. faster
  17. the amount of water
  18. we keep it the same
  19. False
  20. sugar
  21. False
  22. False
  23. look for leftover grains
  24. a big sugar cube
  25. not needed
  26. a grown-up
  27. some stays undissolved
  28. sugar
  29. sugar left unstirred
  30. a comb
  31. not needed
  32. False
  33. table salt
  34. False
  35. not needed
  36. glucose powder
  37. False
  38. sugar in warm water
  39. dissolves in water
  40. cooking oil

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