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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 328 · 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 needed for the dissolving test? (a) a magnet (b) honey (c) a mirror (d) sugar
  2. 2.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
  3. 3.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar in icy water (d) sugar stirred well
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of sugar (c) the water temperature (d) the amount of water
  5. 5.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  6. 6.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
  7. 7.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) small pebbles (d) cooking oil
  9. 9.⚖️ 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) False (b) True
  10. 10.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  11. 11.🔍 Which is the odd one out? (a) sand (b) sugar (c) cooking oil (d) chalk powder
  12. 12.🛟 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
  13. 13.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  14. 14.True or false: sugar in icy water dissolves faster. (a) True (b) False
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
  16. 16.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) let the water evaporate (d) keep it in a fridge
  17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
  18. 18.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  19. 19.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  20. 20.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
  21. 21.🧺 Which of these is needed for the dissolving test? (a) honey (b) two clear glasses (c) a comb (d) cotton wool
  22. 22.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
  23. 23.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
  24. 24.True or false: sugar dissolves in water. (a) False (b) True
  25. 25.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
  26. 26.🥄 Which of these does not dissolve in water? (a) baking soda (b) small pebbles (c) sugar (d) glucose powder
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) cotton wool (d) a teaspoon
  29. 29.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  30. 30.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  31. 31.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) baking soda (d) table salt
  32. 32.True or false: baking soda does not dissolve in water. (a) True (b) False
  33. 33.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
  34. 34.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
  35. 35.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) food colour (d) sand
  36. 36.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
  37. 37.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
  38. 38.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it became air (d) it vanished for ever
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a mirror (c) cold water (d) sugar
  40. 40.🥄 Which of these does not dissolve in water? (a) food colour (b) sand (c) baking soda (d) sugar

Answer key

  1. sugar
  2. sugar stirred well
  3. sugar in icy water
  4. the water temperature
  5. not needed
  6. False
  7. does not dissolve
  8. baking soda
  9. True
  10. not needed
  11. sugar
  12. a grown-up
  13. dissolves in water
  14. False
  15. False
  16. let the water evaporate
  17. faster
  18. needed
  19. dissolves in water
  20. slower
  21. two clear glasses
  22. sugar in warm water
  23. powdered sugar
  24. True
  25. needed
  26. small pebbles
  27. we keep it the same
  28. cotton wool
  29. faster
  30. dissolves in water
  31. chalk powder
  32. False
  33. True
  34. look for leftover grains
  35. sand
  36. True
  37. a solution
  38. it spread in the water
  39. a mirror
  40. sand

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