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Dissolving Experiment Worksheet: Warm and Cold Water

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

Answer key

  1. a teaspoon
  2. we change it
  3. cooking oil
  4. not needed
  5. True
  6. False
  7. we keep it the same
  8. powdered sugar
  9. honey
  10. sugar left unstirred
  11. True
  12. False
  13. True
  14. dissolves in water
  15. let the water evaporate
  16. a magnet
  17. slower
  18. the amount of water
  19. True
  20. cotton wool
  21. a balloon
  22. food colour
  23. False
  24. glucose powder
  25. chalk powder
  26. dissolves in water
  27. True
  28. we keep it the same
  29. small pebbles
  30. a grown-up
  31. sand
  32. False
  33. powdered sugar
  34. slower
  35. faster
  36. look for leftover grains
  37. a comb
  38. cooking oil
  39. a mirror
  40. True

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