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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 188 · 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.True or false: warm water is needed for the dissolving test. (a) False (b) True
  2. 2.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) baking soda (d) cooking oil
  3. 3.True or false: sawdust dissolves in water. (a) True (b) False
  4. 4.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  5. 5.⚖️ 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) False (b) True
  6. 6.🥄 Which of these dissolves in water? (a) glucose powder (b) sawdust (c) cooking oil (d) small pebbles
  7. 7.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  8. 8.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) honey (d) cold water
  10. 10.🔍 Which is the odd one out? (a) sugar (b) sand (c) baking soda (d) table salt
  11. 11.True or false: sugar stirred well dissolves slower. (a) True (b) False
  12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a balloon (c) a clock or timer (d) two clear glasses
  13. 13.True or false: food colour dissolves in water. (a) True (b) False
  14. 14.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
  16. 16.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) let the water evaporate (d) add more water
  17. 17.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
  18. 18.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) sugar left unstirred (d) a big sugar cube
  19. 19.True or false: baking soda dissolves in water. (a) True (b) False
  20. 20.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) table salt (d) cooking oil
  21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
  22. 22.True or false: cooking oil dissolves in water. (a) True (b) False
  23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
  24. 24.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
  25. 25.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) warm water (d) honey
  26. 26.True or false: glucose powder does not dissolve in water. (a) False (b) True
  27. 27.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
  28. 28.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  29. 29.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
  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 does not dissolve in water? (a) sand (b) food colour (c) baking soda (d) sugar
  32. 32.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) a big sugar cube (d) sugar in warm water
  33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a comb (c) two clear glasses (d) cold water
  34. 34.True or false: table salt dissolves in water. (a) True (b) False
  35. 35.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) slower (d) the same
  36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
  37. 37.🔍 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
  38. 38.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) two clear glasses (c) cold water (d) sugar
  39. 39.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  40. 40.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. True
  2. cooking oil
  3. False
  4. faster
  5. False
  6. glucose powder
  7. not needed
  8. needed
  9. honey
  10. sand
  11. False
  12. a balloon
  13. True
  14. needed
  15. False
  16. let the water evaporate
  17. not needed
  18. sugar in warm water
  19. True
  20. cooking oil
  21. False
  22. False
  23. we measure it
  24. not needed
  25. warm water
  26. False
  27. slower
  28. slower
  29. a solution
  30. we keep it the same
  31. sand
  32. a big sugar cube
  33. a comb
  34. True
  35. faster
  36. needed
  37. it spread in the water
  38. a mirror
  39. False
  40. dissolves in water

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