Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 619 · 40 questions

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.

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

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