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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 788 · 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 is needed for the dissolving test? (a) a clock or timer (b) a comb (c) a magnet (d) honey
  2. 2.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) sugar (d) a mirror
  3. 3.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
  4. 4.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
  5. 5.True or false: table salt does not dissolve in water. (a) False (b) True
  6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) the same (d) slower
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) sugar (d) cold water
  8. 8.⚖️ 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 amount of sugar
  9. 9.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
  11. 11.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a balloon (c) a comb (d) a magnet
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) cold water (d) a magnet
  13. 13.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  14. 14.🧺 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
  15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a mirror (c) a teaspoon (d) sugar
  16. 16.True or false: sugar in warm water dissolves faster. (a) False (b) True
  17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the kind of sugar (c) the water temperature (d) the amount of water
  18. 18.True or false: sugar in warm water dissolves slower. (a) True (b) False
  19. 19.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
  20. 20.🛟 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
  21. 21.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  22. 22.True or false: cold water is needed for the dissolving test. (a) False (b) True
  23. 23.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) chalk powder (d) cooking oil
  24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) a teaspoon (d) sugar
  25. 25.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar stirred well
  26. 26.True or false: a comb is not needed for the dissolving test. (a) False (b) True
  27. 27.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) a mirror (d) warm water
  28. 28.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  29. 29.True or false: sawdust dissolves in water. (a) True (b) False
  30. 30.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) cotton wool (d) a teaspoon
  31. 31.True or false: sand dissolves in water. (a) True (b) False
  32. 32.True or false: a balloon is needed for the dissolving test. (a) False (b) True
  33. 33.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  34. 34.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  35. 35.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  36. 36.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  37. 37.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) a magnet (d) cold water
  38. 38.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a solution (d) a crystal
  39. 39.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) warm water is thicker (d) cold water is wet
  40. 40.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed

Answer key

  1. a clock or timer
  2. sugar
  3. powdered sugar
  4. a big sugar cube
  5. False
  6. faster
  7. honey
  8. the amount of sugar
  9. some stays undissolved
  10. we keep it the same
  11. warm water
  12. a magnet
  13. faster
  14. a balloon
  15. a mirror
  16. True
  17. the water temperature
  18. False
  19. a grown-up
  20. look for leftover grains
  21. not needed
  22. True
  23. glucose powder
  24. a comb
  25. sugar stirred well
  26. True
  27. a mirror
  28. not needed
  29. False
  30. cotton wool
  31. False
  32. False
  33. needed
  34. True
  35. does not dissolve
  36. False
  37. a magnet
  38. a solution
  39. particles move faster
  40. not needed

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