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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 599 · 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.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) table salt (d) sand
  2. 2.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) table salt (d) sand
  3. 3.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) a big sugar cube
  4. 4.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  5. 5.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
  6. 6.🥄 Which of these dissolves in water? (a) sawdust (b) sugar (c) sand (d) chalk powder
  7. 7.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) a teaspoon (d) honey
  8. 8.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) sawdust (d) cooking oil
  9. 9.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
  11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cotton wool (c) cold water (d) sugar
  12. 12.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) sawdust (d) food colour
  13. 13.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
  14. 14.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) table salt (d) small pebbles
  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.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the sugar turns to salt (d) the water turns solid
  17. 17.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  18. 18.True or false: a comb is not needed for the dissolving test. (a) False (b) True
  19. 19.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) honey (d) a teaspoon
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  21. 21.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) food colour (d) cooking oil
  22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
  23. 23.True or false: sugar in warm water dissolves slower. (a) False (b) True
  24. 24.True or false: sugar dissolves in water. (a) False (b) True
  25. 25.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
  26. 26.🧺 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) a teaspoon
  27. 27.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) sawdust (d) glucose powder
  28. 28.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
  29. 29.⚖️ 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) True (b) False
  30. 30.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  31. 31.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  32. 32.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  33. 33.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred
  34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) warm water (d) a comb
  35. 35.True or false: baking soda does not dissolve in water. (a) True (b) False
  36. 36.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  37. 37.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) let the water evaporate (d) stir it more
  38. 38.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
  39. 39.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
  40. 40.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a magnet (c) a comb (d) a balloon

Answer key

  1. table salt
  2. sand
  3. a big sugar cube
  4. False
  5. True
  6. sugar
  7. a teaspoon
  8. baking soda
  9. False
  10. we keep it the same
  11. cotton wool
  12. sawdust
  13. a grown-up
  14. small pebbles
  15. True
  16. some stays undissolved
  17. not needed
  18. True
  19. honey
  20. True
  21. cooking oil
  22. we change it
  23. False
  24. True
  25. faster
  26. a balloon
  27. glucose powder
  28. it spread in the water
  29. True
  30. needed
  31. needed
  32. faster
  33. sugar in warm water
  34. a comb
  35. False
  36. slower
  37. let the water evaporate
  38. False
  39. False
  40. sugar

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