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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 897 · 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: food colour does not dissolve in water. (a) True (b) False
  2. 2.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  3. 3.True or false: sugar in icy water dissolves slower. (a) False (b) True
  4. 4.🥄 Which of these does not dissolve in water? (a) baking soda (b) sand (c) food colour (d) sugar
  5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a magnet (d) sugar
  6. 6.⚖️ 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) True (b) False
  7. 7.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
  9. 9.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in warm water (d) sugar in icy water
  10. 10.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) a comb (d) cold water
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
  13. 13.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
  14. 14.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  15. 15.True or false: a mirror is needed for the dissolving test. (a) False (b) True
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
  17. 17.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it sank as sand (d) it vanished for ever
  18. 18.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  19. 19.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
  20. 20.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  21. 21.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) sugar (d) a magnet
  22. 22.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
  23. 23.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  24. 24.🔍 Which is the odd one out? (a) table salt (b) sugar (c) glucose powder (d) sand
  25. 25.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) sawdust (d) sugar
  28. 28.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  29. 29.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) a teaspoon (d) a mirror
  30. 30.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
  31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
  32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) cotton wool (d) sugar
  33. 33.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  34. 34.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) particles move faster (d) cold water is wet
  35. 35.True or false: a big sugar cube dissolves slower. (a) False (b) True
  36. 36.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  37. 37.🔍 Which is the odd one out? (a) small pebbles (b) cooking oil (c) sugar (d) chalk powder
  38. 38.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  39. 39.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  40. 40.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed

Answer key

  1. False
  2. True
  3. True
  4. sand
  5. a magnet
  6. False
  7. False
  8. powdered sugar
  9. sugar in warm water
  10. cold water
  11. False
  12. True
  13. look for leftover grains
  14. needed
  15. False
  16. we change it
  17. it spread in the water
  18. needed
  19. a grown-up
  20. does not dissolve
  21. a magnet
  22. True
  23. slower
  24. sand
  25. False
  26. True
  27. sawdust
  28. dissolves in water
  29. a teaspoon
  30. a solution
  31. False
  32. cotton wool
  33. needed
  34. particles move faster
  35. True
  36. needed
  37. sugar
  38. True
  39. does not dissolve
  40. not needed

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