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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 647 · 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.

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  1. 1.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a clock or timer (c) honey (d) a balloon
  2. 2.🔍 Which is the odd one out? (a) cooking oil (b) baking soda (c) chalk powder (d) small pebbles
  3. 3.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
  5. 5.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  6. 6.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
  7. 7.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  8. 8.True or false: a comb is needed for the dissolving test. (a) True (b) False
  9. 9.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  10. 10.True or false: sugar in icy water dissolves slower. (a) False (b) True
  11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the stirring (c) the amount of water (d) the water temperature
  12. 12.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  13. 13.⚖️ 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 measure it (c) we keep it the same
  14. 14.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
  15. 15.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
  16. 16.⚖️ 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) True (b) False
  17. 17.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  18. 18.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  19. 19.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
  20. 20.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) warm water (d) a mirror
  21. 21.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  22. 22.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  23. 23.True or false: glucose powder does not dissolve in water. (a) True (b) False
  24. 24.True or false: sugar dissolves in water. (a) True (b) False
  25. 25.True or false: food colour dissolves in water. (a) False (b) True
  26. 26.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) a big sugar cube
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) warm water (d) a comb
  28. 28.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a balloon (d) two clear glasses
  29. 29.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) a teaspoon (d) a mirror
  30. 30.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) slower (d) faster
  31. 31.True or false: sawdust dissolves in water. (a) True (b) False
  32. 32.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) a teaspoon (d) honey
  33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a magnet (c) cold water (d) a teaspoon
  34. 34.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
  35. 35.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
  36. 36.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar in warm water (d) sugar stirred well
  37. 37.True or false: powdered sugar dissolves faster. (a) True (b) False
  38. 38.⚖️ 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) the amount of sugar (c) time to dissolve
  39. 39.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
  40. 40.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) cold water is wet (d) warm water is thicker

Answer key

  1. a clock or timer
  2. baking soda
  3. True
  4. we keep it the same
  5. dissolves in water
  6. a solution
  7. False
  8. False
  9. needed
  10. True
  11. the water temperature
  12. slower
  13. we keep it the same
  14. a grown-up
  15. it spread in the water
  16. True
  17. dissolves in water
  18. needed
  19. sugar stirred well
  20. warm water
  21. False
  22. not needed
  23. False
  24. True
  25. True
  26. a big sugar cube
  27. a comb
  28. two clear glasses
  29. a teaspoon
  30. faster
  31. False
  32. honey
  33. a magnet
  34. False
  35. look for leftover grains
  36. sugar in icy water
  37. True
  38. the amount of sugar
  39. not needed
  40. particles move faster

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