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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 571 · 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.⚖️ 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 sugar (b) the amount of water (c) the water temperature (d) time to dissolve
  2. 2.True or false: sugar stirred well dissolves faster. (a) True (b) False
  3. 3.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) sugar (c) a clock or timer (d) cold water
  4. 4.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  5. 5.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a rainbow (c) a magnet (d) a crystal
  6. 6.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  7. 7.🥄 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
  8. 8.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) let the water evaporate (d) keep it in a fridge
  9. 9.True or false: sugar stirred well dissolves slower. (a) True (b) False
  10. 10.True or false: sand dissolves in water. (a) False (b) True
  11. 11.🥄 Which of these does not dissolve in water? (a) sawdust (b) table salt (c) sugar (d) food colour
  12. 12.True or false: food colour dissolves in water. (a) True (b) False
  13. 13.True or false: sugar left unstirred dissolves faster. (a) True (b) False
  14. 14.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  15. 15.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) honey (c) a teaspoon (d) cold water
  16. 16.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) sand (d) sugar
  17. 17.⚖️ 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 keep it the same (c) we measure it
  18. 18.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) all of it dissolves (d) the water turns solid
  19. 19.True or false: sugar left unstirred dissolves slower. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) sugar (b) table salt (c) chalk powder (d) food colour
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
  22. 22.🥄 Which of these dissolves in water? (a) sawdust (b) baking soda (c) chalk powder (d) small pebbles
  23. 23.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  24. 24.True or false: a comb is needed for the dissolving test. (a) True (b) False
  25. 25.True or false: chalk powder dissolves in water. (a) False (b) True
  26. 26.⚖️ 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
  27. 27.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  29. 29.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
  31. 31.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it
  32. 32.True or false: food colour does not dissolve in water. (a) False (b) True
  33. 33.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) honey (c) cold water (d) a magnet
  34. 34.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) cold water (c) a teaspoon (d) sugar
  36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) sugar (d) a magnet
  37. 37.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  38. 38.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  39. 39.True or false: baking soda does not dissolve in water. (a) True (b) False
  40. 40.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all

Answer key

  1. the water temperature
  2. True
  3. a balloon
  4. slower
  5. a solution
  6. faster
  7. particles move faster
  8. let the water evaporate
  9. False
  10. False
  11. sawdust
  12. True
  13. False
  14. faster
  15. honey
  16. sugar
  17. we change it
  18. some stays undissolved
  19. True
  20. chalk powder
  21. False
  22. baking soda
  23. needed
  24. False
  25. False
  26. we keep it the same
  27. does not dissolve
  28. needed
  29. a big sugar cube
  30. True
  31. look for leftover grains
  32. False
  33. cold water
  34. not needed
  35. a balloon
  36. a magnet
  37. False
  38. slower
  39. False
  40. faster

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