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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 183 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) two clear glasses (d) sugar
  2. 2.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) sand (d) baking soda
  4. 4.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
  5. 5.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  6. 6.🛟 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
  7. 7.True or false: sugar does not dissolve in water. (a) False (b) True
  8. 8.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  9. 9.True or false: food colour does not dissolve in water. (a) True (b) False
  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 keep it the same (b) we measure it (c) we change it
  11. 11.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  12. 12.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) a clock or timer (d) honey
  13. 13.True or false: sugar in warm water dissolves slower. (a) True (b) False
  14. 14.True or false: a magnet is needed for the dissolving test. (a) False (b) True
  15. 15.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) powdered sugar (d) sugar stirred well
  16. 16.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
  18. 18.True or false: small pebbles does not dissolve in water. (a) False (b) True
  19. 19.⚖️ 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
  20. 20.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
  21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) time to dissolve (c) the amount of water (d) the kind of sugar
  23. 23.⚖️ 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
  24. 24.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) food colour (d) small pebbles
  25. 25.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a balloon (c) a teaspoon (d) a clock or timer
  26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) a magnet (d) sugar
  27. 27.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  28. 28.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) sugar left unstirred (d) a big sugar cube
  29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a clock or timer (d) cotton wool
  30. 30.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
  31. 31.True or false: powdered sugar dissolves faster. (a) True (b) False
  32. 32.True or false: sugar stirred well dissolves faster. (a) False (b) True
  33. 33.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) food colour (d) sawdust
  34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
  35. 35.True or false: sawdust does not dissolve in water. (a) False (b) True
  36. 36.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) a big sugar cube (d) sugar stirred well
  37. 37.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  38. 38.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar stirred well
  39. 39.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  40. 40.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False

Answer key

  1. a comb
  2. does not dissolve
  3. baking soda
  4. a grown-up
  5. needed
  6. look for leftover grains
  7. False
  8. does not dissolve
  9. False
  10. we keep it the same
  11. faster
  12. honey
  13. False
  14. False
  15. sugar left unstirred
  16. faster
  17. False
  18. True
  19. False
  20. True
  21. it spread in the water
  22. the water temperature
  23. False
  24. food colour
  25. a balloon
  26. a magnet
  27. not needed
  28. sugar in warm water
  29. cotton wool
  30. needed
  31. True
  32. True
  33. sawdust
  34. True
  35. True
  36. a big sugar cube
  37. False
  38. sugar stirred well
  39. dissolves in water
  40. True

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