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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 536 · 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 is the odd one out? (a) sugar (b) sawdust (c) glucose powder (d) food colour
  2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a clock or timer (c) a teaspoon (d) cold water
  3. 3.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) a magnet (d) honey
  4. 4.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar in warm water (d) a big sugar cube
  5. 5.⚖️ 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) True (b) False
  6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a comb (d) cold water
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a teaspoon (d) honey
  8. 8.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
  9. 9.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
  10. 10.True or false: chalk powder dissolves in water. (a) False (b) True
  11. 11.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
  12. 12.True or false: sawdust does not dissolve in water. (a) True (b) False
  13. 13.⚖️ 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
  14. 14.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
  15. 15.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) honey (d) sugar
  16. 16.🥄 Which of these does not dissolve in water? (a) cooking oil (b) glucose powder (c) food colour (d) table salt
  17. 17.True or false: table salt does not dissolve in water. (a) True (b) False
  18. 18.True or false: a mirror is needed for the dissolving test. (a) False (b) True
  19. 19.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) sugar (d) small pebbles
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
  21. 21.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) a magnet (d) a clock or timer
  22. 22.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) sand (d) baking soda
  23. 23.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
  24. 24.True or false: sugar is needed for the dissolving test. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) food colour (b) chalk powder (c) cooking oil (d) sand
  26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
  27. 27.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
  29. 29.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
  31. 31.⚖️ 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
  32. 32.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  33. 33.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
  34. 34.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) chalk powder (d) sawdust
  35. 35.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  36. 36.🥄 Which of these does not dissolve in water? (a) chalk powder (b) table salt (c) food colour (d) glucose powder
  37. 37.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
  38. 38.True or false: small pebbles 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.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower

Answer key

  1. sawdust
  2. cotton wool
  3. a teaspoon
  4. sugar in warm water
  5. False
  6. a comb
  7. honey
  8. True
  9. look for leftover grains
  10. False
  11. it settles at the bottom
  12. True
  13. we keep it the same
  14. faster
  15. honey
  16. cooking oil
  17. False
  18. False
  19. sugar
  20. the amount of water
  21. a magnet
  22. sand
  23. not needed
  24. True
  25. food colour
  26. True
  27. dissolves in water
  28. True
  29. does not dissolve
  30. False
  31. True
  32. dissolves in water
  33. slower
  34. sugar
  35. not needed
  36. chalk powder
  37. not needed
  38. False
  39. particles move faster
  40. faster

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