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Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 543 · 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) muddy water (b) a balloon (c) a clean glass (d) a funnel
  2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
  3. 3.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) small stones from dal (c) sugar from sugar water (d) chaff from wheat grain
  4. 4.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
  5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
  6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
  7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
  8. 8.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) sieving (d) evaporating
  9. 9.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
  10. 10.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) mud from water (c) bad grains from rice (d) salt from sea water
  11. 11.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
  12. 12.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a battery cell (d) sand and pebbles
  13. 13.True or false: small stones from dal is done by handpicking. (a) True (b) False
  14. 14.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
  15. 15.🫗 How do we separate tea leaves from tea? (a) evaporating (b) handpicking (c) filtering (d) winnowing
  16. 16.⚖️ 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 change it (b) we keep it the same (c) we measure it
  17. 17.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) bran from wheat flour (d) gravel from fine sand
  18. 18.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
  19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) yeast
  20. 20.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) sieving (d) filtering
  21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
  22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) turmeric powder (d) a funnel
  23. 23.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
  24. 24.🫗 Which of these is done by winnowing? (a) salt from sea water (b) sugar from sugar water (c) husk from rice grain (d) tea leaves from tea
  25. 25.True or false: husk from rice grain is done by winnowing. (a) False (b) True
  26. 26.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
  27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) muddy water (d) cotton or cloth
  28. 28.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
  29. 29.🫗 Which of these is done by handpicking? (a) salt from sea water (b) bran from wheat flour (c) tea leaves from tea (d) small stones from dal
  30. 30.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
  31. 31.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
  32. 32.True or false: bran from wheat flour is done by sieving. (a) False (b) True
  33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
  34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same glass (c) the filter material (d) the same muddy water
  35. 35.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) a battery cell (d) turmeric powder
  36. 36.🫗 How do we separate gravel from fine sand? (a) handpicking (b) evaporating (c) filtering (d) sieving
  37. 37.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
  38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
  39. 39.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) muddy water (d) a clean glass
  40. 40.⚖️ 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 filter material (d) the same muddy water

Answer key

  1. a balloon
  2. False
  3. chaff from wheat grain
  4. not needed
  5. germs are invisible
  6. the same muddy water
  7. clearer
  8. filtering
  9. False
  10. bad grains from rice
  11. True
  12. sand and pebbles
  13. True
  14. no, germs may stay
  15. filtering
  16. we measure it
  17. mud from water
  18. needed
  19. yeast
  20. sieving
  21. True
  22. turmeric powder
  23. needed
  24. husk from rice grain
  25. True
  26. True
  27. a magnet
  28. needed
  29. small stones from dal
  30. no, salt passes through
  31. True
  32. True
  33. the same glass
  34. how clear the water is
  35. a funnel
  36. sieving
  37. not needed
  38. we change it
  39. a battery cell
  40. the filter material

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