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Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 768 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
  2. 2.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
  3. 3.🫗 Which of these is done by winnowing? (a) mud from water (b) bran from wheat flour (c) tea leaves from tea (d) chaff from wheat grain
  4. 4.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
  5. 5.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) yeast (d) a funnel
  6. 6.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
  7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a clean glass (d) a mirror
  8. 8.🫗 Which of these is done by sieving? (a) bad grains from rice (b) small stones from dal (c) bran from wheat flour (d) sugar from sugar water
  9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) muddy water (d) a funnel
  10. 10.⚖️ 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) True (b) False
  11. 11.True or false: gravel from fine sand is done by sieving. (a) True (b) False
  12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) cotton or cloth (c) a funnel (d) muddy water
  13. 13.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
  14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
  15. 15.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
  16. 16.True or false: salt from sea water is done by sieving. (a) False (b) True
  17. 17.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
  18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
  19. 19.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) a balloon (d) a battery cell
  20. 20.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
  21. 21.⚖️ 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) True (b) False
  22. 22.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) muddy water (d) a balloon
  23. 23.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
  24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
  25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) cotton or cloth (d) turmeric powder
  26. 26.🫗 How do we separate bran from wheat flour? (a) evaporating (b) filtering (c) handpicking (d) sieving
  27. 27.🫗 How do we separate bad grains from rice? (a) filtering (b) handpicking (c) evaporating (d) sieving
  28. 28.⚖️ 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) the same glass (c) the same funnel (d) how clear the water is
  29. 29.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
  30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
  31. 31.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
  32. 32.⚖️ 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
  33. 33.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
  34. 34.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
  35. 35.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
  36. 36.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) yeast (d) sand and pebbles
  37. 37.True or false: tea leaves from tea is done by filtering. (a) False (b) True
  38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
  39. 39.⚖️ 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
  40. 40.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) tea leaves from tea (c) small stones from dal (d) gravel from fine sand

Answer key

  1. the mud
  2. leaves stay behind
  3. chaff from wheat grain
  4. not needed
  5. a funnel
  6. no, germs may stay
  7. a mirror
  8. bran from wheat flour
  9. a battery cell
  10. False
  11. True
  12. a magnet
  13. not needed
  14. False
  15. False
  16. False
  17. False
  18. we change it
  19. sand and pebbles
  20. no, salt passes through
  21. True
  22. muddy water
  23. wash hands afterwards
  24. we keep it the same
  25. turmeric powder
  26. sieving
  27. handpicking
  28. how clear the water is
  29. False
  30. we keep it the same
  31. needed
  32. False
  33. False
  34. clearer
  35. False
  36. yeast
  37. True
  38. False
  39. True
  40. small stones from dal

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