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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 735 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) slower (d) the same
  2. 2.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  3. 3.True or false: sand dissolves in water. (a) True (b) False
  4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a magnet (d) two clear glasses
  5. 5.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) sugar in icy water (d) a big sugar cube
  6. 6.True or false: sawdust dissolves in water. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) chalk powder (d) sugar
  8. 8.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cold water (c) a balloon (d) honey
  9. 9.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) sand (d) cooking oil
  10. 10.True or false: a balloon is needed for the dissolving test. (a) True (b) False
  11. 11.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
  12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the water temperature (c) the stirring (d) the amount of sugar
  13. 13.True or false: a big sugar cube dissolves slower. (a) False (b) True
  14. 14.True or false: glucose powder dissolves in water. (a) False (b) True
  15. 15.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a comb (c) a teaspoon (d) sugar
  16. 16.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
  17. 17.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
  18. 18.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
  19. 19.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) a clock or timer (d) honey
  20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) honey (d) a clock or timer
  21. 21.🥄 Which of these does not dissolve in water? (a) chalk powder (b) glucose powder (c) food colour (d) table salt
  22. 22.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) cooking oil (d) baking soda
  23. 23.🛟 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
  24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
  25. 25.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred
  26. 26.True or false: sugar stirred well dissolves faster. (a) True (b) False
  27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a teaspoon (c) warm water (d) cold water
  28. 28.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) powdered sugar (d) sugar in warm water
  29. 29.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
  30. 30.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  31. 31.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a balloon (c) a clock or timer (d) warm water
  32. 32.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) food colour (d) cooking oil
  33. 33.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
  34. 34.True or false: warm water is not needed for the dissolving test. (a) False (b) True
  35. 35.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a comb (d) honey
  36. 36.🔮 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) the water turns solid (c) some stays undissolved (d) all of it dissolves
  37. 37.True or false: powdered sugar dissolves slower. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) glucose powder (b) small pebbles (c) sugar (d) baking soda
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) the water temperature (c) time to dissolve
  40. 40.True or false: warm water is needed for the dissolving test. (a) True (b) False

Answer key

  1. faster
  2. faster
  3. False
  4. a magnet
  5. powdered sugar
  6. False
  7. chalk powder
  8. cold water
  9. sugar
  10. False
  11. slower
  12. the water temperature
  13. True
  14. True
  15. a comb
  16. look for leftover grains
  17. sugar in warm water
  18. needed
  19. honey
  20. honey
  21. chalk powder
  22. baking soda
  23. a grown-up
  24. we keep it the same
  25. sugar stirred well
  26. True
  27. a mirror
  28. sugar in icy water
  29. powdered sugar
  30. False
  31. a balloon
  32. food colour
  33. a solution
  34. False
  35. a teaspoon
  36. some stays undissolved
  37. False
  38. small pebbles
  39. the amount of sugar
  40. True

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