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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 550 · 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 does not dissolve in water? (a) table salt (b) food colour (c) baking soda (d) sawdust
  2. 2.True or false: glucose powder does not dissolve in water. (a) True (b) False
  3. 3.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  4. 4.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) table salt (d) sand
  5. 5.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) cotton wool (d) two clear glasses
  6. 6.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) a big sugar cube (d) sugar in icy water
  7. 7.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
  8. 8.🔍 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
  9. 9.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  10. 10.🔍 Which is the odd one out? (a) sugar (b) sand (c) glucose powder (d) table salt
  11. 11.True or false: a big sugar cube dissolves faster. (a) False (b) True
  12. 12.True or false: sugar does not dissolve in water. (a) False (b) True
  13. 13.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  14. 14.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) chalk powder (d) cooking oil
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
  16. 16.True or false: sugar is not needed for the dissolving test. (a) False (b) True
  17. 17.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) a teaspoon (d) cotton wool
  18. 18.True or false: honey is needed for the dissolving test. (a) True (b) False
  19. 19.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  20. 20.🥄 Which of these does not dissolve in water? (a) chalk powder (b) food colour (c) baking soda (d) table salt
  21. 21.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) sugar (d) small pebbles
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
  23. 23.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  24. 24.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) cotton wool (d) a clock or timer
  25. 25.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the stirring
  30. 30.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) sugar (b) sand (c) sawdust (d) cooking oil
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
  33. 33.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  34. 34.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
  35. 35.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred
  36. 36.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) a mirror (d) sugar
  37. 37.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  38. 38.True or false: baking soda dissolves in water. (a) False (b) True
  39. 39.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) honey (d) cold water
  40. 40.⚖️ 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 water (c) the kind of sugar (d) the water temperature

Answer key

  1. sawdust
  2. False
  3. slower
  4. sand
  5. two clear glasses
  6. sugar stirred well
  7. powdered sugar
  8. it settles at the bottom
  9. needed
  10. sand
  11. False
  12. False
  13. True
  14. glucose powder
  15. True
  16. False
  17. a teaspoon
  18. False
  19. needed
  20. chalk powder
  21. sugar
  22. False
  23. True
  24. cotton wool
  25. needed
  26. we keep it the same
  27. we measure it
  28. we keep it the same
  29. the stirring
  30. False
  31. sugar
  32. False
  33. does not dissolve
  34. it spread in the water
  35. sugar in warm water
  36. sugar
  37. False
  38. True
  39. honey
  40. the water temperature

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