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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 811 · 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.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  2. 2.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) chalk powder (d) glucose powder
  4. 4.True or false: powdered sugar dissolves slower. (a) False (b) True
  5. 5.True or false: a big sugar cube dissolves faster. (a) True (b) False
  6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) two clear glasses (d) cotton wool
  7. 7.🛟 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
  8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
  9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a balloon (c) a teaspoon (d) two clear glasses
  10. 10.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  11. 11.True or false: sugar in icy water dissolves faster. (a) True (b) False
  12. 12.True or false: small pebbles does not dissolve in water. (a) False (b) True
  13. 13.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  14. 14.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
  15. 15.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) powdered sugar (d) sugar in icy water
  16. 16.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
  17. 17.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
  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 keep it the same (b) we measure it (c) we change it
  19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
  20. 20.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) sugar (d) a clock or timer
  21. 21.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
  22. 22.True or false: sawdust dissolves in water. (a) True (b) False
  23. 23.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar in icy water (d) powdered sugar
  24. 24.True or false: table salt does not dissolve in water. (a) True (b) False
  25. 25.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar stirred well
  26. 26.True or false: sugar in warm water dissolves slower. (a) True (b) False
  27. 27.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  28. 28.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) let the water evaporate (d) stir it more
  29. 29.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) baking soda (d) small pebbles
  30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a comb (d) cold water
  31. 31.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) small pebbles (d) baking soda
  32. 32.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) a big sugar cube (d) sugar left unstirred
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the kind of sugar (c) the water temperature (d) the amount of sugar
  34. 34.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  35. 35.🔍 Which is the odd one out? (a) table salt (b) cooking oil (c) glucose powder (d) sugar
  36. 36.True or false: baking soda does not dissolve in water. (a) False (b) True
  37. 37.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) sawdust (d) sugar
  38. 38.True or false: warm water is needed for the dissolving test. (a) False (b) True
  39. 39.True or false: sugar stirred well dissolves slower. (a) False (b) True
  40. 40.⚖️ 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 stirring (c) the water temperature (d) the amount of sugar

Answer key

  1. not needed
  2. dissolves in water
  3. chalk powder
  4. False
  5. False
  6. cotton wool
  7. a grown-up
  8. True
  9. a balloon
  10. needed
  11. False
  12. True
  13. False
  14. True
  15. powdered sugar
  16. a solution
  17. it spread in the water
  18. we keep it the same
  19. False
  20. honey
  21. particles move faster
  22. False
  23. sugar in icy water
  24. False
  25. sugar stirred well
  26. False
  27. faster
  28. let the water evaporate
  29. baking soda
  30. a comb
  31. baking soda
  32. sugar in warm water
  33. the water temperature
  34. does not dissolve
  35. cooking oil
  36. False
  37. sugar
  38. True
  39. False
  40. time to dissolve

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