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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 517 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
  2. 2.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  3. 3.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) add more water (d) keep it in a fridge
  4. 4.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) glucose powder (d) small pebbles
  5. 5.True or false: sawdust does not dissolve in water. (a) True (b) False
  6. 6.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
  7. 7.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) cooking oil (d) glucose powder
  8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) sugar (c) cold water (d) a teaspoon
  9. 9.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) sawdust (d) glucose powder
  10. 10.🥄 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
  11. 11.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cold water (c) honey (d) a magnet
  12. 12.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
  13. 13.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
  14. 14.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  15. 15.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
  17. 17.True or false: sand dissolves in water. (a) True (b) False
  18. 18.True or false: table salt does not dissolve in water. (a) True (b) False
  19. 19.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) sugar (d) a mirror
  20. 20.⚖️ 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
  21. 21.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
  23. 23.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a clock or timer (c) a comb (d) a mirror
  24. 24.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  25. 25.True or false: sugar in icy water dissolves slower. (a) False (b) True
  26. 26.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  27. 27.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
  28. 28.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  29. 29.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the stirring (c) the water temperature (d) the amount of water
  31. 31.True or false: cooking oil dissolves in water. (a) False (b) True
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
  33. 33.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a teaspoon (c) two clear glasses (d) honey
  34. 34.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  35. 35.⚖️ 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 water temperature (d) the amount of water
  36. 36.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) sugar (d) a balloon
  37. 37.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
  38. 38.⚖️ 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
  39. 39.True or false: sugar in icy water dissolves faster. (a) False (b) True
  40. 40.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed

Answer key

  1. faster
  2. dissolves in water
  3. let the water evaporate
  4. small pebbles
  5. True
  6. not needed
  7. glucose powder
  8. a mirror
  9. glucose powder
  10. particles move faster
  11. cold water
  12. look for leftover grains
  13. sugar stirred well
  14. needed
  15. not needed
  16. we keep it the same
  17. False
  18. False
  19. sugar
  20. True
  21. slower
  22. powdered sugar
  23. a clock or timer
  24. needed
  25. True
  26. dissolves in water
  27. a solution
  28. needed
  29. needed
  30. the water temperature
  31. False
  32. False
  33. honey
  34. dissolves in water
  35. time to dissolve
  36. a balloon
  37. sugar left unstirred
  38. True
  39. False
  40. not needed

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