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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 609 · 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 is the odd one out? (a) sugar (b) food colour (c) glucose powder (d) chalk powder
  2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a magnet (d) warm water
  3. 3.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
  4. 4.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  5. 5.True or false: sugar is needed for the dissolving test. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) small pebbles (d) sand
  7. 7.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) warm water (c) cotton wool (d) a magnet
  8. 8.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  9. 9.⚖️ 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 keep it the same (c) we measure it
  10. 10.⚖️ 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) time to dissolve (c) the amount of sugar (d) the water temperature
  11. 11.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it dissolves (d) it settles at the bottom
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) warm water (d) cold water
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  14. 14.True or false: sugar stirred well dissolves slower. (a) True (b) False
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of water (c) the water temperature (d) the amount of sugar
  16. 16.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a teaspoon (d) a magnet
  17. 17.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) glucose powder (d) sand
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) cotton wool (d) cold water
  19. 19.True or false: glucose powder dissolves in water. (a) True (b) False
  20. 20.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it became air (d) it sank as sand
  21. 21.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  22. 22.True or false: table salt does not dissolve in water. (a) False (b) True
  23. 23.True or false: a big sugar cube dissolves slower. (a) True (b) False
  24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) two clear glasses (d) a mirror
  25. 25.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) sugar (d) sawdust
  26. 26.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  27. 27.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
  28. 28.True or false: sugar in warm water dissolves faster. (a) True (b) False
  29. 29.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  30. 30.True or false: honey is not needed for the dissolving test. (a) True (b) False
  31. 31.True or false: food colour does not dissolve in water. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) sand (b) table salt (c) sugar (d) food colour
  33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
  34. 34.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) cooking oil (d) baking soda
  35. 35.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
  36. 36.True or false: sand dissolves in water. (a) False (b) True
  37. 37.True or false: sugar in icy water dissolves slower. (a) True (b) False
  38. 38.True or false: sugar in warm water dissolves slower. (a) True (b) False
  39. 39.🛟 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
  40. 40.True or false: a comb is needed for the dissolving test. (a) True (b) False

Answer key

  1. chalk powder
  2. a magnet
  3. look for leftover grains
  4. slower
  5. True
  6. table salt
  7. warm water
  8. dissolves in water
  9. we keep it the same
  10. the water temperature
  11. it settles at the bottom
  12. a comb
  13. True
  14. False
  15. time to dissolve
  16. a teaspoon
  17. sand
  18. cotton wool
  19. True
  20. it spread in the water
  21. faster
  22. False
  23. True
  24. a mirror
  25. sawdust
  26. needed
  27. True
  28. True
  29. needed
  30. True
  31. False
  32. sand
  33. False
  34. cooking oil
  35. powdered sugar
  36. False
  37. True
  38. False
  39. a grown-up
  40. False

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