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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 217 · 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.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) sand (d) sugar
  2. 2.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  3. 3.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
  4. 4.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  5. 5.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the sugar turns to salt (d) the water turns solid
  6. 6.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  7. 7.True or false: table salt dissolves in water. (a) False (b) True
  8. 8.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a balloon (c) a mirror (d) cotton wool
  9. 9.True or false: food colour does not dissolve in water. (a) False (b) True
  10. 10.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a balloon (c) a clock or timer (d) warm water
  11. 11.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) stir it more (c) keep it in a fridge (d) add more water
  12. 12.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  13. 13.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  14. 14.True or false: a comb is needed for the dissolving test. (a) True (b) False
  15. 15.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  16. 16.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  17. 17.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
  18. 18.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  19. 19.🔍 Which is the odd one out? (a) sugar (b) sand (c) glucose powder (d) baking soda
  20. 20.🥄 Which of these does not dissolve in water? (a) glucose powder (b) cooking oil (c) sugar (d) table salt
  21. 21.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) both the same (d) neither of them
  22. 22.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) a mirror (d) two clear glasses
  23. 23.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  24. 24.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) sugar in icy water (d) a big sugar cube
  25. 25.⚖️ 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
  26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) a clock or timer (d) a comb
  27. 27.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) powdered sugar
  28. 28.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) glucose powder (d) sand
  29. 29.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar in warm water (d) sugar stirred well
  30. 30.🔍 Which is the odd one out? (a) sawdust (b) sand (c) baking soda (d) cooking oil
  31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  33. 33.🧺 Which of these is needed for the dissolving test? (a) sugar (b) honey (c) a mirror (d) a magnet
  34. 34.⚖️ 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 stirring
  35. 35.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  36. 36.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  37. 37.True or false: sugar in warm water dissolves faster. (a) True (b) False
  38. 38.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
  39. 39.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) honey (d) two clear glasses

Answer key

  1. sugar
  2. not needed
  3. look for leftover grains
  4. not needed
  5. some stays undissolved
  6. faster
  7. True
  8. warm water
  9. False
  10. a balloon
  11. let the water evaporate
  12. slower
  13. False
  14. False
  15. not needed
  16. faster
  17. a big sugar cube
  18. needed
  19. sand
  20. cooking oil
  21. powdered sugar
  22. a mirror
  23. needed
  24. sugar in warm water
  25. True
  26. a comb
  27. powdered sugar
  28. sand
  29. sugar left unstirred
  30. baking soda
  31. faster
  32. we keep it the same
  33. sugar
  34. the stirring
  35. dissolves in water
  36. does not dissolve
  37. True
  38. a solution
  39. False
  40. honey

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