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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 310 · 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.True or false: baking soda does not dissolve in water. (a) False (b) True
  2. 2.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) two clear glasses (c) honey (d) a balloon
  3. 3.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
  4. 4.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
  5. 5.True or false: cold water is not needed for the dissolving test. (a) False (b) True
  6. 6.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
  7. 7.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
  8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
  9. 9.🥄 Which of these dissolves in water? (a) baking soda (b) sand (c) sawdust (d) small pebbles
  10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a balloon (d) a teaspoon
  11. 11.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
  12. 12.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
  13. 13.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) small pebbles (d) sand
  14. 14.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
  15. 15.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) add more water (d) let the water evaporate
  16. 16.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
  17. 17.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) honey (c) a teaspoon (d) sugar
  19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a mirror (d) warm water
  20. 20.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) a clock or timer (d) honey
  21. 21.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) food colour (d) chalk powder
  22. 22.True or false: glucose powder does not dissolve in water. (a) False (b) True
  23. 23.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) a mirror (d) sugar
  24. 24.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) some stays undissolved (d) the water turns solid
  25. 25.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
  26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) cold water (c) a clock or timer (d) sugar
  27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) time to dissolve (c) the amount of sugar (d) the kind of sugar
  28. 28.⚖️ 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) False (b) True
  29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the water temperature (c) time to dissolve (d) the stirring
  30. 30.True or false: a big sugar cube dissolves faster. (a) False (b) True
  31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
  32. 32.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) sugar (d) a magnet
  33. 33.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) table salt (d) small pebbles
  34. 34.True or false: sugar in warm water dissolves slower. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) table salt (b) sugar (c) sawdust (d) baking soda
  36. 36.True or false: honey is not needed for the dissolving test. (a) False (b) True
  37. 37.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a balloon (c) sugar (d) a clock or timer
  38. 38.True or false: sugar dissolves in water. (a) True (b) False
  39. 39.True or false: honey is needed for the dissolving test. (a) True (b) False
  40. 40.True or false: warm water is needed for the dissolving test. (a) False (b) True

Answer key

  1. False
  2. two clear glasses
  3. faster
  4. faster
  5. False
  6. look for leftover grains
  7. needed
  8. the kind of sugar
  9. baking soda
  10. a balloon
  11. a grown-up
  12. not needed
  13. glucose powder
  14. False
  15. let the water evaporate
  16. powdered sugar
  17. needed
  18. honey
  19. a mirror
  20. honey
  21. food colour
  22. False
  23. a mirror
  24. some stays undissolved
  25. True
  26. a magnet
  27. time to dissolve
  28. True
  29. the water temperature
  30. False
  31. True
  32. sugar
  33. small pebbles
  34. False
  35. sawdust
  36. True
  37. a balloon
  38. True
  39. False
  40. True

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