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Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 205 · 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.True or false: yeast is needed for the muddy water filter. (a) False (b) True
  2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) turmeric powder (c) a funnel (d) a clean glass
  3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the same muddy water
  4. 4.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
  5. 5.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
  6. 6.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) bad grains from rice (c) bran from wheat flour (d) small stones from dal
  7. 7.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
  8. 8.True or false: bad grains from rice is done by filtering. (a) False (b) True
  9. 9.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
  10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a magnet (d) sand and pebbles
  11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
  12. 12.🫗 Which of these is done by sieving? (a) small stones from dal (b) mud from water (c) gravel from fine sand (d) sugar from sugar water
  13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
  14. 14.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
  15. 15.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
  16. 16.⚖️ 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
  17. 17.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
  18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) muddy water (d) sand and pebbles
  19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
  20. 20.🫗 How do we separate sugar from sugar water? (a) filtering (b) winnowing (c) handpicking (d) evaporating
  21. 21.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
  22. 22.True or false: salt from sea water is done by sieving. (a) False (b) True
  23. 23.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) sieving (c) evaporating (d) handpicking
  24. 24.⚖️ 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) how clear the water is (d) the amount poured
  25. 25.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet
  26. 26.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
  27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
  28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the amount poured
  29. 29.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) handpicking (d) sieving
  30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same funnel (c) the same glass (d) the amount poured
  31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) yeast
  32. 32.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
  33. 33.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
  34. 34.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) evaporating (d) sieving
  35. 35.⚖️ 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
  36. 36.True or false: husk from rice grain is done by winnowing. (a) False (b) True
  37. 37.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a clean glass (c) a mirror (d) a balloon
  38. 38.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a mirror (d) muddy water
  39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
  40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False

Answer key

  1. False
  2. turmeric powder
  3. the same muddy water
  4. True
  5. not needed
  6. chaff from wheat grain
  7. wash hands afterwards
  8. False
  9. needed
  10. a magnet
  11. False
  12. gravel from fine sand
  13. False
  14. False
  15. True
  16. False
  17. False
  18. a battery cell
  19. leaves stay behind
  20. evaporating
  21. not needed
  22. False
  23. winnowing
  24. how clear the water is
  25. germs are invisible
  26. the filter traps mud
  27. we keep it the same
  28. the amount poured
  29. handpicking
  30. the filter material
  31. yeast
  32. True
  33. the mud
  34. filtering
  35. we keep it the same
  36. True
  37. a clean glass
  38. muddy water
  39. False
  40. True

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