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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 657 · 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.🛟 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
  2. 2.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  3. 3.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar left unstirred
  4. 4.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) a comb (d) cold water
  5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
  6. 6.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
  7. 7.🔮 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) the sugar turns to salt (d) all of it dissolves
  8. 8.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  9. 9.🧺 Which of these is needed for the dissolving test? (a) honey (b) a clock or timer (c) cotton wool (d) a comb
  10. 10.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  11. 11.🔮 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
  12. 12.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  13. 13.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
  14. 14.True or false: sugar in warm water dissolves faster. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) cooking oil (b) baking soda (c) sawdust (d) small pebbles
  16. 16.True or false: baking soda dissolves in water. (a) False (b) True
  17. 17.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) powdered sugar (d) a big sugar cube
  18. 18.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) sugar (d) honey
  19. 19.True or false: sugar stirred well dissolves faster. (a) False (b) True
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) a teaspoon (c) sugar (d) cold water
  21. 21.⚖️ 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
  22. 22.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  23. 23.True or false: food colour does not dissolve in water. (a) True (b) False
  24. 24.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
  25. 25.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
  26. 26.True or false: sugar does not dissolve in water. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) glucose powder (d) sawdust
  28. 28.True or false: sawdust does not dissolve in water. (a) True (b) False
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) baking soda (d) sugar
  31. 31.⚖️ 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
  32. 32.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) sugar likes the dark (d) cold water is wet
  33. 33.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) sawdust (d) table salt
  34. 34.🔍 Which is the odd one out? (a) food colour (b) sand (c) sawdust (d) chalk powder
  35. 35.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) cold water (d) warm water
  37. 37.🧺 Which of these is needed for the dissolving test? (a) warm water (b) cotton wool (c) a magnet (d) honey
  38. 38.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  39. 39.True or false: sugar in warm water dissolves slower. (a) True (b) False
  40. 40.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) sugar (c) a clock or timer (d) two clear glasses

Answer key

  1. a grown-up
  2. faster
  3. sugar left unstirred
  4. cold water
  5. False
  6. a big sugar cube
  7. some stays undissolved
  8. faster
  9. a clock or timer
  10. slower
  11. powdered sugar
  12. dissolves in water
  13. look for leftover grains
  14. True
  15. baking soda
  16. True
  17. powdered sugar
  18. sugar
  19. True
  20. a comb
  21. the amount of water
  22. does not dissolve
  23. False
  24. sugar in warm water
  25. False
  26. False
  27. glucose powder
  28. True
  29. False
  30. chalk powder
  31. we change it
  32. particles move faster
  33. table salt
  34. food colour
  35. needed
  36. a balloon
  37. warm water
  38. needed
  39. False
  40. a magnet

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