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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 972 · 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.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) stir it more (d) keep it in a fridge
  2. 2.True or false: sugar stirred well dissolves slower. (a) True (b) False
  3. 3.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  4. 4.🔍 Which is the odd one out? (a) sand (b) sugar (c) chalk powder (d) small pebbles
  5. 5.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) warm water (d) a magnet
  6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) sugar (d) a comb
  7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
  8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) cooking oil (d) food colour
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
  11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) cotton wool (d) two clear glasses
  12. 12.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) sand (d) sugar
  13. 13.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a balloon (c) a teaspoon (d) warm water
  15. 15.True or false: food colour dissolves in water. (a) False (b) True
  16. 16.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
  18. 18.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  19. 19.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  20. 20.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) powdered sugar (d) sugar stirred well
  21. 21.True or false: chalk powder dissolves in water. (a) True (b) False
  22. 22.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  23. 23.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) sand (d) table salt
  24. 24.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  25. 25.🔍 Which is the odd one out? (a) sugar (b) sawdust (c) baking soda (d) table salt
  26. 26.True or false: sugar stirred well dissolves faster. (a) False (b) True
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the amount of water
  28. 28.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  29. 29.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
  30. 30.🛟 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
  31. 31.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  32. 32.True or false: powdered sugar dissolves faster. (a) True (b) False
  33. 33.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  34. 34.🥄 Which of these does not dissolve in water? (a) baking soda (b) sawdust (c) table salt (d) sugar
  35. 35.⚖️ 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 sugar (b) the water temperature (c) the stirring (d) the kind of sugar
  36. 36.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  37. 37.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it floats up (d) it dissolves
  38. 38.True or false: baking soda dissolves in water. (a) True (b) False
  39. 39.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) two clear glasses (d) a magnet
  40. 40.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. let the water evaporate
  2. False
  3. needed
  4. sugar
  5. a magnet
  6. a comb
  7. we keep it the same
  8. False
  9. food colour
  10. we keep it the same
  11. cotton wool
  12. sugar
  13. powdered sugar
  14. a balloon
  15. True
  16. faster
  17. we change it
  18. True
  19. False
  20. sugar left unstirred
  21. False
  22. dissolves in water
  23. sand
  24. not needed
  25. sawdust
  26. True
  27. the amount of water
  28. not needed
  29. particles move faster
  30. a grown-up
  31. needed
  32. True
  33. does not dissolve
  34. sawdust
  35. the water temperature
  36. slower
  37. it settles at the bottom
  38. True
  39. two clear glasses
  40. dissolves in water

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