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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 56 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
  2. 2.True or false: sugar in icy water dissolves faster. (a) True (b) False
  3. 3.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) chalk powder (d) baking soda
  4. 4.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  5. 5.True or false: a magnet is needed for the dissolving test. (a) True (b) False
  6. 6.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) all of it dissolves (d) the sugar turns to salt
  7. 7.⚖️ 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
  8. 8.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
  9. 9.True or false: chalk powder does not dissolve in water. (a) False (b) True
  10. 10.⚖️ 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 change it (c) we keep it the same
  11. 11.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) sand (d) baking soda
  12. 12.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
  13. 13.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar in icy water (d) sugar left unstirred
  14. 14.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
  15. 15.🥄 Which of these dissolves in water? (a) chalk powder (b) glucose powder (c) cooking oil (d) small pebbles
  16. 16.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  17. 17.True or false: sugar in warm water dissolves slower. (a) True (b) False
  18. 18.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  19. 19.True or false: food colour does not dissolve in water. (a) False (b) True
  20. 20.True or false: sugar is needed for the dissolving test. (a) True (b) False
  21. 21.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
  22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cotton wool (c) warm water (d) a clock or timer
  23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a mirror (c) cold water (d) a teaspoon
  24. 24.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
  25. 25.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
  26. 26.True or false: sugar in warm water dissolves faster. (a) True (b) False
  27. 27.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
  28. 28.True or false: a comb is needed for the dissolving test. (a) True (b) False
  29. 29.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
  30. 30.True or false: sand dissolves in water. (a) False (b) True
  31. 31.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  32. 32.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
  33. 33.True or false: sugar stirred well dissolves slower. (a) False (b) True
  34. 34.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
  35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
  36. 36.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) food colour (d) sand
  37. 37.⚖️ 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 change it (c) we measure it
  38. 38.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
  39. 39.True or false: glucose powder dissolves in water. (a) True (b) False
  40. 40.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) two clear glasses (d) honey

Answer key

  1. we keep it the same
  2. False
  3. chalk powder
  4. faster
  5. False
  6. some stays undissolved
  7. we keep it the same
  8. a grown-up
  9. True
  10. we keep it the same
  11. baking soda
  12. a solution
  13. sugar stirred well
  14. look for leftover grains
  15. glucose powder
  16. slower
  17. False
  18. not needed
  19. False
  20. True
  21. True
  22. cotton wool
  23. a mirror
  24. not needed
  25. False
  26. True
  27. needed
  28. False
  29. needed
  30. False
  31. does not dissolve
  32. faster
  33. False
  34. particles move faster
  35. False
  36. food colour
  37. we measure it
  38. needed
  39. True
  40. two clear glasses

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