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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 42 · 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.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) a big sugar cube
  2. 2.True or false: table salt does not dissolve in water. (a) True (b) False
  3. 3.🛟 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
  4. 4.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  5. 5.⚖️ 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
  6. 6.⚖️ 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
  7. 7.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  8. 8.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it floats up (d) it turns blue
  9. 9.⚖️ 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 amount of water (c) the stirring (d) the amount of sugar
  10. 10.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  11. 11.True or false: sand does not dissolve in water. (a) False (b) True
  12. 12.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
  13. 13.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) glucose powder (d) cooking oil
  14. 14.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  15. 15.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) two clear glasses (d) a mirror
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  17. 17.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) time to dissolve (c) the stirring (d) the water temperature
  19. 19.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  20. 20.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) cotton wool (d) two clear glasses
  21. 21.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar left unstirred (d) sugar in warm water
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
  23. 23.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  24. 24.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  25. 25.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
  26. 26.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a mirror (c) two clear glasses (d) cold water
  28. 28.True or false: sugar stirred well dissolves faster. (a) False (b) True
  29. 29.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
  30. 30.True or false: sugar dissolves in water. (a) False (b) True
  31. 31.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) sugar (c) a teaspoon (d) warm water
  33. 33.🔍 Which is the odd one out? (a) food colour (b) sugar (c) sand (d) baking soda
  34. 34.🔍 Which is the odd one out? (a) sawdust (b) sand (c) sugar (d) cooking oil
  35. 35.⚖️ 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 stirring
  36. 36.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) small pebbles (d) table salt
  37. 37.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
  38. 38.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) sugar (d) honey
  40. 40.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution

Answer key

  1. a big sugar cube
  2. False
  3. a grown-up
  4. needed
  5. False
  6. True
  7. True
  8. it settles at the bottom
  9. time to dissolve
  10. not needed
  11. True
  12. False
  13. glucose powder
  14. False
  15. a mirror
  16. True
  17. faster
  18. the water temperature
  19. does not dissolve
  20. two clear glasses
  21. sugar left unstirred
  22. the amount of water
  23. slower
  24. False
  25. faster
  26. does not dissolve
  27. a mirror
  28. True
  29. False
  30. True
  31. True
  32. a balloon
  33. sand
  34. sugar
  35. the stirring
  36. small pebbles
  37. look for leftover grains
  38. False
  39. honey
  40. a solution

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