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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 494 · 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 teaspoon (b) two clear glasses (c) a clock or timer (d) cotton wool
  2. 2.⚖️ 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 amount of water (c) the water temperature
  3. 3.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  4. 4.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  5. 5.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) warm water is thicker (d) particles move faster
  6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
  7. 7.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) small pebbles (d) sugar
  8. 8.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a balloon (c) a magnet (d) a comb
  9. 9.🔍 Which is the odd one out? (a) sawdust (b) sand (c) sugar (d) small pebbles
  10. 10.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar in icy water (d) powdered sugar
  11. 11.⚖️ 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) False (b) True
  12. 12.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  13. 13.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
  15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) a teaspoon (d) cold water
  16. 16.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) table salt (d) cooking oil
  17. 17.🥄 Which of these dissolves in water? (a) cooking oil (b) glucose powder (c) chalk powder (d) sawdust
  18. 18.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
  20. 20.True or false: table salt dissolves in water. (a) False (b) True
  21. 21.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a magnet (d) honey
  22. 22.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  23. 23.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) baking soda (d) small pebbles
  24. 24.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a magnet (d) a crystal
  25. 25.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a magnet (c) a clock or timer (d) a comb
  26. 26.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it became air (d) it sank as sand
  27. 27.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
  28. 28.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  29. 29.True or false: sugar is needed for the dissolving test. (a) True (b) False
  30. 30.🔮 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
  31. 31.🥄 Which of these does not dissolve in water? (a) food colour (b) small pebbles (c) sugar (d) baking soda
  32. 32.True or false: powdered sugar dissolves slower. (a) True (b) False
  33. 33.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  34. 34.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  35. 35.True or false: sugar in warm water dissolves faster. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) table salt (b) chalk powder (c) baking soda (d) food colour
  37. 37.🥄 Which of these does not dissolve in water? (a) cooking oil (b) sugar (c) glucose powder (d) food colour
  38. 38.⚖️ 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) False (b) True
  39. 39.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) two clear glasses (d) a balloon

Answer key

  1. cotton wool
  2. the amount of water
  3. dissolves in water
  4. not needed
  5. particles move faster
  6. faster
  7. sugar
  8. sugar
  9. sugar
  10. sugar in icy water
  11. True
  12. True
  13. does not dissolve
  14. we keep it the same
  15. a comb
  16. table salt
  17. glucose powder
  18. slower
  19. False
  20. True
  21. a teaspoon
  22. not needed
  23. small pebbles
  24. a solution
  25. a clock or timer
  26. it spread in the water
  27. look for leftover grains
  28. faster
  29. True
  30. powdered sugar
  31. small pebbles
  32. False
  33. False
  34. needed
  35. True
  36. chalk powder
  37. cooking oil
  38. True
  39. slower
  40. a balloon

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