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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 755 · 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.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  2. 2.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) warm water is thicker (d) cold water is wet
  3. 3.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) sugar in warm water (d) powdered sugar
  4. 4.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) small pebbles (d) baking soda
  5. 5.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  6. 6.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) a balloon (d) cold water
  7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) a teaspoon (d) a comb
  8. 8.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
  9. 9.🧺 Which of these is not needed for the dissolving test? (a) honey (b) a teaspoon (c) two clear glasses (d) sugar
  10. 10.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
  12. 12.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
  14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) two clear glasses (c) warm water (d) a teaspoon
  15. 15.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
  16. 16.True or false: a big sugar cube dissolves faster. (a) False (b) True
  17. 17.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) sugar (d) cooking oil
  18. 18.True or false: a big sugar cube dissolves slower. (a) True (b) False
  19. 19.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) table salt (d) sand
  20. 20.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
  21. 21.True or false: sawdust does not dissolve in water. (a) False (b) True
  22. 22.True or false: cold water is needed for the dissolving test. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) food colour (b) chalk powder (c) sugar (d) glucose powder
  24. 24.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) sand (d) table salt
  25. 25.True or false: cold water is not needed for the dissolving test. (a) True (b) False
  26. 26.True or false: warm water is needed for the dissolving test. (a) True (b) False
  27. 27.True or false: a mirror is needed for the dissolving test. (a) True (b) False
  28. 28.🔍 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
  29. 29.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) sawdust (d) glucose powder
  30. 30.True or false: chalk powder does not dissolve in water. (a) True (b) False
  31. 31.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
  32. 32.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) small pebbles (d) cooking oil
  33. 33.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a comb (c) warm water (d) two clear glasses
  35. 35.True or false: sugar dissolves in water. (a) False (b) True
  36. 36.True or false: a comb is needed for the dissolving test. (a) True (b) False
  37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
  38. 38.⚖️ 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
  39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a teaspoon (d) a magnet
  40. 40.⚖️ 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) False (b) True

Answer key

  1. dissolves in water
  2. particles move faster
  3. a big sugar cube
  4. small pebbles
  5. dissolves in water
  6. cold water
  7. a comb
  8. a grown-up
  9. honey
  10. slower
  11. powdered sugar
  12. not needed
  13. True
  14. honey
  15. faster
  16. False
  17. cooking oil
  18. True
  19. table salt
  20. look for leftover grains
  21. True
  22. True
  23. chalk powder
  24. sand
  25. False
  26. True
  27. False
  28. it settles at the bottom
  29. sawdust
  30. True
  31. powdered sugar
  32. food colour
  33. dissolves in water
  34. a comb
  35. True
  36. False
  37. True
  38. we measure it
  39. a magnet
  40. False

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