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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 460 · 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.

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  1. 1.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
  2. 2.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) sugar in warm water (d) powdered sugar
  3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
  5. 5.⚖️ 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
  6. 6.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  7. 7.True or false: sugar stirred well dissolves slower. (a) True (b) False
  8. 8.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
  9. 9.True or false: table salt does not dissolve in water. (a) True (b) False
  10. 10.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) small pebbles (d) sugar
  11. 11.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  12. 12.🥄 Which of these dissolves in water? (a) glucose powder (b) small pebbles (c) cooking oil (d) sawdust
  13. 13.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) some stays undissolved (d) the sugar turns to salt
  14. 14.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
  15. 15.True or false: sugar is needed for the dissolving test. (a) True (b) False
  16. 16.True or false: warm water is not needed for the dissolving test. (a) True (b) False
  17. 17.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  18. 18.True or false: sugar stirred well dissolves faster. (a) False (b) True
  19. 19.⚖️ 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) False (b) True
  20. 20.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  21. 21.True or false: sugar does not dissolve in water. (a) False (b) True
  22. 22.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
  23. 23.⚖️ 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
  24. 24.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a magnet (d) a rainbow
  25. 25.True or false: baking soda does not dissolve in water. (a) True (b) False
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
  27. 27.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) a big sugar cube (d) sugar left unstirred
  28. 28.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) a balloon (d) a clock or timer
  29. 29.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) chalk powder (d) table salt
  30. 30.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  31. 31.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
  32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
  33. 33.True or false: small pebbles dissolves in water. (a) False (b) True
  34. 34.True or false: food colour dissolves in water. (a) False (b) True
  35. 35.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
  36. 36.True or false: a big sugar cube dissolves slower. (a) True (b) False
  37. 37.⚖️ 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) False (b) True
  38. 38.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) a big sugar cube (d) sugar stirred well
  39. 39.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a comb (c) a teaspoon (d) cold water

Answer key

  1. a grown-up
  2. sugar in icy water
  3. we keep it the same
  4. we change it
  5. False
  6. does not dissolve
  7. False
  8. look for leftover grains
  9. False
  10. sugar
  11. needed
  12. glucose powder
  13. some stays undissolved
  14. particles move faster
  15. True
  16. False
  17. needed
  18. True
  19. False
  20. faster
  21. False
  22. not needed
  23. we keep it the same
  24. a solution
  25. False
  26. False
  27. sugar stirred well
  28. a clock or timer
  29. table salt
  30. True
  31. True
  32. we measure it
  33. False
  34. True
  35. powdered sugar
  36. True
  37. False
  38. a big sugar cube
  39. dissolves in water
  40. a comb

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