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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 118 · 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: two clear glasses is needed for the dissolving test. (a) False (b) True
  2. 2.True or false: sugar stirred well dissolves faster. (a) True (b) False
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
  4. 4.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) stir it more (d) keep it in a fridge
  5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) glucose powder (d) sugar
  7. 7.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) baking soda (d) chalk powder
  8. 8.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a mirror (d) cold water
  9. 9.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  10. 10.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) two clear glasses (c) warm water (d) sugar
  12. 12.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) chalk powder (d) baking soda
  13. 13.True or false: sugar dissolves in water. (a) True (b) False
  14. 14.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
  15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) two clear glasses (d) a balloon
  16. 16.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  17. 17.True or false: small pebbles does not dissolve in water. (a) False (b) True
  18. 18.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
  19. 19.🥄 Which of these dissolves in water? (a) chalk powder (b) baking soda (c) sawdust (d) small pebbles
  20. 20.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) sugar stirred well (d) powdered sugar
  21. 21.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) a comb (d) cold water
  22. 22.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it vanished for ever (d) it sank as sand
  23. 23.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sugar (d) small pebbles
  24. 24.⚖️ 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) True (b) False
  25. 25.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
  26. 26.⚖️ 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
  27. 27.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
  30. 30.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  31. 31.True or false: sugar does not dissolve in water. (a) False (b) True
  32. 32.True or false: sugar in icy water dissolves slower. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) glucose powder (d) small pebbles
  34. 34.🥄 Does cooking oil 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? True or false: the stirring is the one thing we change. (a) True (b) False
  36. 36.True or false: sugar in icy water dissolves faster. (a) True (b) False
  37. 37.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  38. 38.True or false: sugar is needed for the dissolving test. (a) False (b) True
  39. 39.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False

Answer key

  1. True
  2. True
  3. False
  4. let the water evaporate
  5. False
  6. sawdust
  7. chalk powder
  8. cold water
  9. False
  10. needed
  11. a magnet
  12. baking soda
  13. True
  14. a solution
  15. a balloon
  16. faster
  17. True
  18. look for leftover grains
  19. baking soda
  20. sugar in icy water
  21. a comb
  22. it spread in the water
  23. sugar
  24. True
  25. a grown-up
  26. we change it
  27. dissolves in water
  28. faster
  29. False
  30. needed
  31. False
  32. True
  33. glucose powder
  34. does not dissolve
  35. False
  36. False
  37. dissolves in water
  38. True
  39. dissolves in water
  40. False

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