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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 980 · 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.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  2. 2.True or false: sugar stirred well dissolves slower. (a) True (b) False
  3. 3.True or false: baking soda does not dissolve in water. (a) False (b) True
  4. 4.⚖️ 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
  5. 5.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
  6. 6.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  7. 7.🧺 Which of these is needed for the dissolving test? (a) warm water (b) honey (c) a balloon (d) a magnet
  8. 8.⚖️ 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 kind of sugar (c) the amount of water (d) the amount of sugar
  9. 9.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  10. 10.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) warm water (d) a magnet
  12. 12.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) a magnet (d) two clear glasses
  13. 13.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  14. 14.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
  15. 15.True or false: a mirror is not 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 keep it the same (b) we measure it (c) we change it
  17. 17.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
  18. 18.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  19. 19.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar left unstirred (d) sugar stirred well
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
  21. 21.True or false: honey is needed for the dissolving test. (a) False (b) True
  22. 22.⚖️ 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
  23. 23.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  24. 24.True or false: food colour dissolves in water. (a) True (b) False
  25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the water temperature (c) the stirring (d) the amount of water
  26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) two clear glasses (d) cotton wool
  27. 27.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  29. 29.🔍 Which is the odd one out? (a) sugar (b) table salt (c) food colour (d) cooking oil
  30. 30.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  31. 31.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) small pebbles (d) sugar
  32. 32.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) sugar (d) sand
  33. 33.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) a big sugar cube (d) sugar left unstirred
  34. 34.True or false: sugar in icy water dissolves faster. (a) False (b) True
  35. 35.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air
  36. 36.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  37. 37.True or false: sand dissolves in water. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) sand (d) sawdust
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) a mirror (d) a teaspoon
  40. 40.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a magnet (d) a rainbow

Answer key

  1. needed
  2. False
  3. False
  4. we measure it
  5. a grown-up
  6. True
  7. warm water
  8. time to dissolve
  9. not needed
  10. False
  11. a magnet
  12. a magnet
  13. False
  14. look for leftover grains
  15. True
  16. we change it
  17. powdered sugar
  18. needed
  19. sugar left unstirred
  20. False
  21. False
  22. False
  23. False
  24. True
  25. the water temperature
  26. cotton wool
  27. dissolves in water
  28. slower
  29. cooking oil
  30. slower
  31. small pebbles
  32. sand
  33. sugar in warm water
  34. False
  35. it spread in the water
  36. needed
  37. False
  38. food colour
  39. a mirror
  40. a solution

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