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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 151 · 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.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) time to dissolve (c) the kind of sugar (d) the stirring
  3. 3.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  4. 4.🛟 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
  5. 5.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  6. 6.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  7. 7.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) sugar (d) chalk powder
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a teaspoon (d) cotton wool
  9. 9.True or false: small pebbles does not dissolve in water. (a) False (b) True
  10. 10.True or false: cooking oil dissolves in water. (a) False (b) True
  11. 11.🛟 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
  12. 12.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) honey (d) a clock or timer
  13. 13.True or false: a big sugar cube dissolves faster. (a) True (b) False
  14. 14.True or false: sugar stirred well dissolves faster. (a) False (b) True
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
  16. 16.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
  17. 17.🥄 Which of these does not dissolve in water? (a) food colour (b) small pebbles (c) sugar (d) table salt
  18. 18.True or false: table salt dissolves in water. (a) False (b) True
  19. 19.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  20. 20.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
  21. 21.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) sugar (d) sand
  22. 22.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  23. 23.True or false: honey is needed for the dissolving test. (a) True (b) False
  24. 24.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well
  25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
  26. 26.⚖️ 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 water temperature (c) the amount of water (d) time to dissolve
  27. 27.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  28. 28.🔍 Which is the odd one out? (a) table salt (b) sugar (c) baking soda (d) small pebbles
  29. 29.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  30. 30.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) sugar likes the dark (d) warm water is thicker
  31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) a clock or timer (c) sugar (d) a teaspoon
  32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) warm water (d) a clock or timer
  33. 33.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.True or false: sugar stirred well dissolves slower. (a) False (b) True
  35. 35.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) sugar (c) a clock or timer (d) warm water
  36. 36.True or false: baking soda does not dissolve in water. (a) False (b) True
  37. 37.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) sugar in icy water (d) a big sugar cube
  38. 38.⚖️ 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) the amount of sugar (c) time to dissolve
  39. 39.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) keep it in a fridge (d) stir it more
  40. 40.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) sugar stirred well (d) powdered sugar

Answer key

  1. True
  2. time to dissolve
  3. False
  4. a grown-up
  5. False
  6. dissolves in water
  7. chalk powder
  8. cotton wool
  9. True
  10. False
  11. look for leftover grains
  12. a clock or timer
  13. False
  14. True
  15. True
  16. a solution
  17. small pebbles
  18. True
  19. True
  20. powdered sugar
  21. sand
  22. False
  23. False
  24. sugar left unstirred
  25. False
  26. the water temperature
  27. not needed
  28. small pebbles
  29. needed
  30. particles move faster
  31. a balloon
  32. honey
  33. does not dissolve
  34. False
  35. a balloon
  36. False
  37. sugar in warm water
  38. the amount of sugar
  39. let the water evaporate
  40. a big sugar cube

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