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Dissolving Experiment Worksheet: Warm and Cold Water

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

Answer key

  1. a balloon
  2. it settles at the bottom
  3. faster
  4. a comb
  5. it spread in the water
  6. sugar
  7. cold water
  8. sugar left unstirred
  9. glucose powder
  10. not needed
  11. baking soda
  12. dissolves in water
  13. False
  14. sugar
  15. look for leftover grains
  16. not needed
  17. sugar in icy water
  18. False
  19. does not dissolve
  20. slower
  21. False
  22. True
  23. some stays undissolved
  24. False
  25. True
  26. we keep it the same
  27. False
  28. a teaspoon
  29. powdered sugar
  30. glucose powder
  31. needed
  32. True
  33. False
  34. not needed
  35. does not dissolve
  36. we keep it the same
  37. False
  38. honey
  39. powdered sugar
  40. food colour

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