Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 706 · 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.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) evaporating (c) sieving (d) handpicking
2. 2.⚖️ 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
3. 3.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
4. 4.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) filtering (d) winnowing
7. 7.🫗 How do we separate bran from wheat flour? (a) sieving (b) filtering (c) winnowing (d) evaporating
8. 8.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bad grains from rice (c) bran from wheat flour (d) chaff from wheat grain
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
11. 11.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
13. 13.🫗 How do we separate husk from rice grain? (a) evaporating (b) sieving (c) handpicking (d) winnowing
14. 14.🔮 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
15. 15.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
16. 16.True or false: husk from rice grain is done by filtering. (a) True (b) False
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a mirror (d) cotton or cloth
18. 18.⚖️ 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 amount poured (c) the same funnel (d) the filter material
19. 19.True or false: small stones from dal is done by handpicking. (a) True (b) False
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a funnel (c) a balloon (d) a mirror
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) sand and pebbles (d) muddy water
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a clean glass (d) a mirror
23. 23.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) cotton or cloth (d) a magnet
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) a balloon (d) a mirror
25. 25.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
27. 27.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
28. 28.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
29. 29.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
30. 30.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
31. 31.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a funnel (d) sand and pebbles
33. 33.⚖️ 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) how clear the water is (c) the amount poured (d) the filter material
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
35. 35.🫗 Which of these is done by handpicking? (a) small stones from dal (b) gravel from fine sand (c) husk from rice grain (d) salt from sea water
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) a clean glass (d) muddy water
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🫗 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
40. 40.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False

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