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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 832 · 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 is not needed for the dissolving test? (a) a magnet (b) a clock or timer (c) cold water (d) two clear glasses
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of water (c) the kind of sugar (d) the amount of sugar
  3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a comb (d) a teaspoon
  4. 4.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it floats up (d) it turns blue
  5. 5.🔍 Which is the odd one out? (a) glucose powder (b) chalk powder (c) small pebbles (d) sawdust
  6. 6.True or false: food colour dissolves in water. (a) False (b) True
  7. 7.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  8. 8.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a comb (c) a magnet (d) honey
  9. 9.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
  10. 10.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
  11. 11.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) powdered sugar
  12. 12.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
  13. 13.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
  14. 14.🥄 Which of these does not dissolve in water? (a) table salt (b) cooking oil (c) food colour (d) sugar
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
  16. 16.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) a clock or timer (d) a comb
  17. 17.True or false: a mirror is needed for the dissolving test. (a) False (b) True
  18. 18.True or false: glucose powder does not dissolve in water. (a) True (b) False
  19. 19.True or false: sugar does not dissolve in water. (a) True (b) False
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
  21. 21.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) neither of them (d) the sugar cube
  22. 22.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
  23. 23.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) two clear glasses (c) a magnet (d) honey
  24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) cotton wool (d) cold water
  25. 25.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  26. 26.True or false: baking soda does not dissolve in water. (a) False (b) True
  27. 27.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) cold water (c) warm water (d) a teaspoon
  28. 28.True or false: a big sugar cube dissolves slower. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) glucose powder (b) small pebbles (c) food colour (d) sugar
  30. 30.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  31. 31.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) sugar (d) small pebbles
  32. 32.True or false: chalk powder dissolves in water. (a) False (b) True
  33. 33.True or false: sugar stirred well dissolves faster. (a) False (b) True
  34. 34.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  35. 35.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
  36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) a balloon (d) sugar
  37. 37.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
  38. 38.True or false: sugar dissolves in water. (a) False (b) True
  39. 39.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
  40. 40.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed

Answer key

  1. a magnet
  2. time to dissolve
  3. a comb
  4. it settles at the bottom
  5. glucose powder
  6. True
  7. False
  8. sugar
  9. a solution
  10. look for leftover grains
  11. powdered sugar
  12. a grown-up
  13. True
  14. cooking oil
  15. we keep it the same
  16. a clock or timer
  17. False
  18. False
  19. False
  20. we keep it the same
  21. powdered sugar
  22. it spread in the water
  23. two clear glasses
  24. cotton wool
  25. slower
  26. False
  27. a balloon
  28. True
  29. small pebbles
  30. needed
  31. sugar
  32. False
  33. True
  34. does not dissolve
  35. not needed
  36. a balloon
  37. sugar stirred well
  38. True
  39. particles move faster
  40. needed

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