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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 252 · 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.True or false: baking soda dissolves in water. (a) False (b) True
  2. 2.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) sugar stirred well (d) powdered sugar
  3. 3.🥄 Which of these does not dissolve in water? (a) small pebbles (b) baking soda (c) sugar (d) food colour
  4. 4.⚖️ 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
  5. 5.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
  6. 6.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) time to dissolve (d) the amount of water
  8. 8.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
  9. 9.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it vanished for ever (d) it spread in the water
  10. 10.True or false: cold water is needed for the dissolving test. (a) True (b) False
  11. 11.🥄 Which of these dissolves in water? (a) sugar (b) sand (c) small pebbles (d) sawdust
  12. 12.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  13. 13.🥄 Which of these does not dissolve in water? (a) baking soda (b) sawdust (c) table salt (d) glucose powder
  14. 14.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) a big sugar cube (d) sugar in warm water
  15. 15.True or false: powdered sugar dissolves slower. (a) False (b) True
  16. 16.🥄 Which of these does not dissolve in water? (a) sand (b) glucose powder (c) sugar (d) table salt
  17. 17.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) sand (d) cooking oil
  20. 20.⚖️ 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) the amount of sugar (c) the water temperature (d) the amount of water
  21. 21.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  22. 22.True or false: sugar in warm water dissolves slower. (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 the one thing we change. (a) False (b) True
  24. 24.True or false: table salt dissolves in water. (a) False (b) True
  25. 25.🥄 Which of these dissolves in water? (a) chalk powder (b) glucose powder (c) small pebbles (d) sawdust
  26. 26.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) honey (c) a mirror (d) a magnet
  27. 27.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
  28. 28.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  30. 30.True or false: glucose powder does not dissolve in water. (a) False (b) True
  31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) a clock or timer (d) cold water
  32. 32.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
  33. 33.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  35. 35.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  36. 36.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  37. 37.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
  38. 38.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) sand (d) table salt
  39. 39.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) a balloon (d) cold water
  40. 40.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) warm water is thicker (d) cold water is wet

Answer key

  1. True
  2. sugar in icy water
  3. small pebbles
  4. True
  5. powdered sugar
  6. not needed
  7. time to dissolve
  8. True
  9. it spread in the water
  10. True
  11. sugar
  12. slower
  13. sawdust
  14. a big sugar cube
  15. False
  16. sand
  17. look for leftover grains
  18. False
  19. food colour
  20. the water temperature
  21. does not dissolve
  22. False
  23. False
  24. True
  25. glucose powder
  26. a teaspoon
  27. a solution
  28. dissolves in water
  29. True
  30. False
  31. a comb
  32. a grown-up
  33. does not dissolve
  34. needed
  35. False
  36. False
  37. it settles at the bottom
  38. table salt
  39. a balloon
  40. particles move faster

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