Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 909 · 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: tea leaves from tea is done by filtering. (a) False (b) True
2. 2.⚖️ 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
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
4. 4.True or false: husk from rice grain is done by handpicking. (a) False (b) True
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) sieving (d) filtering
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.True or false: salt from sea water is done by filtering. (a) False (b) True
10. 10.🫗 Which of these is done by filtering? (a) bad grains from rice (b) gravel from fine sand (c) tea leaves from tea (d) salt from sea water
11. 11.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) winnowing (d) sieving
12. 12.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
13. 13.🫗 How do we separate mud from water? (a) winnowing (b) sieving (c) filtering (d) handpicking
14. 14.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the filter material (c) how clear the water is (d) the same glass
16. 16.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) chaff from wheat grain (c) tea leaves from tea (d) bran from wheat flour
17. 17.🫗 How do we separate small stones from dal? (a) sieving (b) winnowing (c) filtering (d) handpicking
18. 18.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves pass through (d) leaves stay behind
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) yeast (c) a clean glass (d) cotton or cloth
20. 20.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) tea leaves from tea (c) small stones from dal (d) gravel from fine sand
21. 21.True or false: sugar from sugar water is done by sieving. (a) False (b) True
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a magnet (d) muddy water
23. 23.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) cotton or cloth (c) muddy water (d) a clean glass
25. 25.⚖️ 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 funnel (c) the amount poured (d) the same muddy water
26. 26.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is clear (d) yes, if it is cold
27. 27.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a mirror (d) cotton or cloth
29. 29.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a balloon (d) muddy water
31. 31.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) salt from sea water (c) small stones from dal (d) gravel from fine sand
32. 32.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
33. 33.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
34. 34.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
35. 35.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
36. 36.True or false: mud from water is done by filtering. (a) True (b) False
37. 37.🫗 How do we separate bran from wheat flour? (a) evaporating (b) sieving (c) winnowing (d) handpicking
38. 38.True or false: husk from rice grain is done by evaporating. (a) True (b) False
39. 39.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) no, salt passes through (d) it turns to sugar
40. 40.True or false: gravel from fine sand is done by sieving. (a) False (b) True

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