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Dissolving Experiment Worksheet: Warm and Cold Water

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

Answer key

  1. powdered sugar
  2. the kind of sugar
  3. True
  4. a magnet
  5. dissolves in water
  6. some stays undissolved
  7. a teaspoon
  8. look for leftover grains
  9. True
  10. time to dissolve
  11. needed
  12. honey
  13. False
  14. a grown-up
  15. True
  16. chalk powder
  17. particles move faster
  18. slower
  19. sand
  20. False
  21. needed
  22. faster
  23. dissolves in water
  24. cold water
  25. a mirror
  26. sugar in warm water
  27. True
  28. False
  29. we change it
  30. needed
  31. baking soda
  32. True
  33. faster
  34. the stirring
  35. True
  36. sugar
  37. a solution
  38. it settles at the bottom
  39. True
  40. a balloon

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