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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 959 · 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 small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  2. 2.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar stirred well (d) sugar left unstirred
  3. 3.True or false: a big sugar cube dissolves faster. (a) False (b) True
  4. 4.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) chalk powder (d) baking soda
  5. 5.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  6. 6.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
  8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the amount of sugar
  9. 9.⚖️ 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) False (b) True
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) glucose powder (b) chalk powder (c) small pebbles (d) sawdust
  12. 12.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
  13. 13.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) sawdust (d) table salt
  14. 14.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
  15. 15.🥄 Which of these does not dissolve in water? (a) baking soda (b) sawdust (c) sugar (d) glucose powder
  16. 16.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
  17. 17.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a clock or timer (d) a balloon
  19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
  20. 20.🧺 Which of these is needed for the dissolving test? (a) honey (b) cold water (c) a magnet (d) a balloon
  21. 21.True or false: sugar dissolves in water. (a) False (b) True
  22. 22.True or false: cooking oil dissolves in water. (a) True (b) False
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
  24. 24.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  25. 25.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  27. 27.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  28. 28.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
  29. 29.True or false: glucose powder dissolves in water. (a) False (b) True
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the kind of sugar (c) the stirring (d) the amount of water
  31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) sugar (d) a magnet
  32. 32.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
  33. 33.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a teaspoon (c) a comb (d) cotton wool
  34. 34.True or false: sand dissolves in water. (a) True (b) False
  35. 35.🔍 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
  36. 36.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  37. 37.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
  39. 39.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) sugar (d) honey
  40. 40.🔍 Which is the odd one out? (a) table salt (b) chalk powder (c) food colour (d) baking soda

Answer key

  1. does not dissolve
  2. sugar stirred well
  3. False
  4. baking soda
  5. dissolves in water
  6. False
  7. we keep it the same
  8. the amount of sugar
  9. True
  10. False
  11. glucose powder
  12. look for leftover grains
  13. table salt
  14. sugar in icy water
  15. sawdust
  16. faster
  17. slower
  18. a balloon
  19. powdered sugar
  20. cold water
  21. True
  22. False
  23. True
  24. not needed
  25. needed
  26. True
  27. faster
  28. a big sugar cube
  29. True
  30. time to dissolve
  31. a magnet
  32. a grown-up
  33. a teaspoon
  34. False
  35. let the water evaporate
  36. False
  37. not needed
  38. we change it
  39. sugar
  40. chalk powder

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