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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 102 · 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) food colour (b) chalk powder (c) sand (d) cooking oil
  2. 2.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
  3. 3.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
  4. 4.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
  5. 5.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
  6. 6.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) all of it dissolves (d) the water turns solid
  7. 7.⚖️ 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) True (b) False
  8. 8.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) warm water (c) sugar (d) cold water
  9. 9.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  10. 10.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
  11. 11.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
  12. 12.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
  13. 13.True or false: sugar is not needed for the dissolving test. (a) True (b) False
  14. 14.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) sand (d) food colour
  15. 15.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) cooking oil (d) sugar
  17. 17.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) a clock or timer (d) a balloon
  19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
  20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
  21. 21.True or false: sugar stirred well dissolves slower. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) sand (b) sugar (c) baking soda (d) food colour
  23. 23.True or false: honey is needed for the dissolving test. (a) False (b) True
  24. 24.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  25. 25.True or false: sugar stirred well dissolves faster. (a) False (b) True
  26. 26.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  27. 27.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
  28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) honey (d) warm water
  29. 29.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a comb (c) a balloon (d) a magnet
  30. 30.True or false: sugar left unstirred dissolves slower. (a) False (b) True
  31. 31.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) sugar (d) sawdust
  32. 32.⚖️ 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 keep it the same (c) we change it
  33. 33.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) food colour (d) glucose powder
  34. 34.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  35. 35.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
  36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
  37. 37.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
  38. 38.True or false: powdered sugar dissolves faster. (a) False (b) True
  39. 39.True or false: honey is not needed for the dissolving test. (a) False (b) True
  40. 40.⚖️ 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

Answer key

  1. food colour
  2. faster
  3. True
  4. faster
  5. faster
  6. some stays undissolved
  7. False
  8. cotton wool
  9. needed
  10. needed
  11. slower
  12. a solution
  13. False
  14. food colour
  15. True
  16. sugar
  17. look for leftover grains
  18. a balloon
  19. powdered sugar
  20. we keep it the same
  21. False
  22. sand
  23. False
  24. not needed
  25. True
  26. does not dissolve
  27. a grown-up
  28. honey
  29. a clock or timer
  30. True
  31. sugar
  32. we keep it the same
  33. small pebbles
  34. does not dissolve
  35. a big sugar cube
  36. False
  37. slower
  38. True
  39. True
  40. False

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