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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 180 · 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.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
  2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a teaspoon (d) honey
  3. 3.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
  4. 4.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
  5. 5.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) powdered sugar (d) a big sugar cube
  6. 6.True or false: honey is not needed for the dissolving test. (a) True (b) False
  7. 7.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  8. 8.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  9. 9.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a magnet (c) two clear glasses (d) warm water
  11. 11.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) glucose powder (d) sand
  12. 12.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  13. 13.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it settles at the bottom (d) it dissolves
  14. 14.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  15. 15.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
  16. 16.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
  17. 17.🔍 Which is the odd one out? (a) table salt (b) sand (c) chalk powder (d) cooking oil
  18. 18.🔮 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
  19. 19.⚖️ 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
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
  21. 21.🥄 Which of these does not dissolve in water? (a) baking soda (b) chalk powder (c) food colour (d) sugar
  22. 22.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
  23. 23.True or false: a comb is not needed for the dissolving test. (a) True (b) False
  24. 24.⚖️ 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 water (c) time to dissolve
  25. 25.True or false: sugar does not dissolve in water. (a) False (b) True
  26. 26.🥄 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
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a clock or timer (d) a mirror
  28. 28.🥄 Which of these dissolves in water? (a) sand (b) baking soda (c) cooking oil (d) sawdust
  29. 29.True or false: sugar in warm water dissolves slower. (a) False (b) True
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  31. 31.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) a mirror (d) a clock or timer
  32. 32.True or false: sugar stirred well dissolves faster. (a) False (b) True
  33. 33.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  35. 35.🥄 Which of these dissolves in water? (a) small pebbles (b) table salt (c) chalk powder (d) cooking oil
  36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) a clock or timer (d) a teaspoon
  37. 37.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  38. 38.True or false: glucose powder dissolves in water. (a) True (b) False
  39. 39.True or false: honey is needed for the dissolving test. (a) True (b) False
  40. 40.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar in warm water (d) sugar stirred well

Answer key

  1. needed
  2. honey
  3. let the water evaporate
  4. a solution
  5. powdered sugar
  6. True
  7. True
  8. needed
  9. slower
  10. a magnet
  11. sand
  12. not needed
  13. it settles at the bottom
  14. needed
  15. a grown-up
  16. look for leftover grains
  17. table salt
  18. powdered sugar
  19. we change it
  20. we keep it the same
  21. chalk powder
  22. True
  23. True
  24. the amount of water
  25. False
  26. particles move faster
  27. a mirror
  28. baking soda
  29. False
  30. we keep it the same
  31. a mirror
  32. True
  33. does not dissolve
  34. dissolves in water
  35. table salt
  36. a comb
  37. True
  38. True
  39. False
  40. a big sugar cube

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