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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 479 · 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.True or false: warm water is needed for the dissolving test. (a) True (b) False
  2. 2.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
  5. 5.True or false: baking soda does not dissolve in water. (a) True (b) False
  6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  7. 7.True or false: cold water is needed for the dissolving test. (a) False (b) True
  8. 8.🥄 Which of these dissolves in water? (a) table salt (b) sand (c) small pebbles (d) chalk powder
  9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
  10. 10.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  11. 11.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  12. 12.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) chalk powder (d) table salt
  13. 13.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  14. 14.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar in icy water (d) sugar stirred well
  15. 15.True or false: table salt does not dissolve in water. (a) True (b) False
  16. 16.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
  18. 18.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  19. 19.🥄 Which of these dissolves in water? (a) sand (b) sugar (c) small pebbles (d) chalk powder
  20. 20.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  21. 21.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a teaspoon (c) cold water (d) two clear glasses
  22. 22.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) table salt (d) sand
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
  24. 24.⚖️ 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 amount of sugar
  25. 25.⚖️ 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 stirring (c) the amount of sugar (d) the water temperature
  26. 26.True or false: a big sugar cube dissolves slower. (a) False (b) True
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a balloon (d) two clear glasses
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) two clear glasses (c) cold water (d) sugar
  29. 29.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  30. 30.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) sand (d) food colour
  31. 31.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) a mirror (d) two clear glasses
  32. 32.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
  33. 33.True or false: chalk powder dissolves in water. (a) True (b) False
  34. 34.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) add more water (d) stir it more
  35. 35.True or false: small pebbles dissolves in water. (a) False (b) True
  36. 36.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker
  37. 37.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  38. 38.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it became air (d) it vanished for ever
  39. 39.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) honey (d) a magnet
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) warm water (d) cotton wool

Answer key

  1. True
  2. does not dissolve
  3. False
  4. False
  5. False
  6. True
  7. True
  8. table salt
  9. powdered sugar
  10. needed
  11. not needed
  12. chalk powder
  13. False
  14. sugar in icy water
  15. False
  16. needed
  17. we keep it the same
  18. faster
  19. sugar
  20. False
  21. a magnet
  22. sand
  23. False
  24. the amount of sugar
  25. time to dissolve
  26. True
  27. a balloon
  28. a magnet
  29. slower
  30. food colour
  31. a mirror
  32. sugar stirred well
  33. False
  34. let the water evaporate
  35. False
  36. particles move faster
  37. needed
  38. it spread in the water
  39. a teaspoon
  40. cotton wool

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