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Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 672 · 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.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sugar (d) it turns to sand
  2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a funnel (d) muddy water
  3. 3.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
  4. 4.True or false: tea leaves from tea is done by filtering. (a) True (b) False
  5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
  6. 6.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) handpicking (d) filtering
  7. 7.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a clean glass (d) a funnel
  8. 8.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
  9. 9.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
  10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) cotton or cloth (d) turmeric powder
  11. 11.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
  12. 12.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) turmeric powder (d) a magnet
  13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a magnet
  14. 14.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
  15. 15.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) winnowing (c) filtering (d) evaporating
  16. 16.🫗 How do we separate salt from sea water? (a) evaporating (b) filtering (c) winnowing (d) sieving
  17. 17.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
  18. 18.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
  19. 19.🫗 How do we separate small stones from dal? (a) sieving (b) winnowing (c) filtering (d) handpicking
  20. 20.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
  21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) a balloon
  22. 22.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
  23. 23.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a battery cell (d) sand and pebbles
  24. 24.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
  25. 25.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
  26. 26.⚖️ 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 glass (b) how clear the water is (c) the same funnel (d) the filter material
  27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
  28. 28.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
  29. 29.🫗 Which of these is done by evaporating? (a) mud from water (b) tea leaves from tea (c) sugar from sugar water (d) husk from rice grain
  30. 30.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) cotton or cloth (d) a magnet
  31. 31.⚖️ 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
  32. 32.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
  33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
  34. 34.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a magnet (c) a battery cell (d) a mirror
  35. 35.🫗 How do we separate sugar from sugar water? (a) handpicking (b) filtering (c) winnowing (d) evaporating
  36. 36.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
  37. 37.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) sieving (d) filtering
  38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the filter material (c) how clear the water is (d) the same muddy water
  39. 39.🫗 Which of these is done by evaporating? (a) salt from sea water (b) husk from rice grain (c) chaff from wheat grain (d) mud from water
  40. 40.⚖️ 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

Answer key

  1. no, salt passes through
  2. a magnet
  3. wash hands afterwards
  4. True
  5. it sinks to the bottom
  6. handpicking
  7. a balloon
  8. germs are invisible
  9. no, germs may stay
  10. turmeric powder
  11. the mud
  12. muddy water
  13. a magnet
  14. needed
  15. winnowing
  16. evaporating
  17. not needed
  18. False
  19. handpicking
  20. False
  21. a balloon
  22. leaves stay behind
  23. sand and pebbles
  24. False
  25. not needed
  26. the filter material
  27. False
  28. not needed
  29. sugar from sugar water
  30. cotton or cloth
  31. True
  32. True
  33. we keep it the same
  34. a funnel
  35. evaporating
  36. False
  37. sieving
  38. how clear the water is
  39. salt from sea water
  40. True

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