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Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 387 · 40 questions
TalentJR

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

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  1. 1.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) sand and pebbles (d) muddy water
  2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a balloon (d) muddy water
  3. 3.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) small stones from dal (c) mud from water (d) husk from rice grain
  4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same muddy water (b) the same funnel (c) the amount poured (d) the filter material
  5. 5.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
  6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
  7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
  8. 8.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the water evaporates (d) the mud dissolves
  9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a magnet (d) a clean glass
  10. 10.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
  11. 11.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
  12. 12.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
  13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
  14. 14.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
  15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) cotton or cloth (d) a mirror
  16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the same glass (d) the same funnel
  17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same muddy water (c) how clear the water is
  18. 18.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
  19. 19.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
  20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
  21. 21.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) sieving (d) handpicking
  22. 22.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
  23. 23.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
  24. 24.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
  25. 25.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) muddy water (d) sand and pebbles
  26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
  27. 27.🫗 Which of these is done by filtering? (a) husk from rice grain (b) tea leaves from tea (c) small stones from dal (d) bad grains from rice
  28. 28.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) a balloon (d) a funnel
  29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
  30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
  31. 31.🫗 Which of these is done by evaporating? (a) small stones from dal (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
  32. 32.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) yeast (d) a clean glass
  33. 33.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
  34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
  35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we measure it (b) we change it (c) we keep it the same
  36. 36.🫗 How do we separate sugar from sugar water? (a) sieving (b) filtering (c) handpicking (d) evaporating
  37. 37.🫗 How do we separate salt from sea water? (a) evaporating (b) sieving (c) winnowing (d) filtering
  38. 38.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) bran from wheat flour (c) chaff from wheat grain (d) sugar from sugar water
  39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) turmeric powder (c) muddy water (d) sand and pebbles
  40. 40.🫗 Which of these is done by evaporating? (a) mud from water (b) small stones from dal (c) chaff from wheat grain (d) salt from sea water

Answer key

  1. yeast
  2. a balloon
  3. small stones from dal
  4. the filter material
  5. needed
  6. the mud
  7. True
  8. the filter traps mud
  9. a magnet
  10. it sinks to the bottom
  11. not needed
  12. leaves stay behind
  13. True
  14. germs are invisible
  15. a mirror
  16. how clear the water is
  17. the same muddy water
  18. wash hands afterwards
  19. True
  20. False
  21. filtering
  22. needed
  23. True
  24. needed
  25. a magnet
  26. True
  27. tea leaves from tea
  28. a funnel
  29. False
  30. True
  31. sugar from sugar water
  32. a clean glass
  33. no, salt passes through
  34. True
  35. we measure it
  36. evaporating
  37. evaporating
  38. chaff from wheat grain
  39. turmeric powder
  40. salt from sea water

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