Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 430 · 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: bad grains from rice is done by handpicking. (a) True (b) False
2. 2.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) small stones from dal (c) mud from water (d) bran from wheat flour
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
4. 4.🫗 Which of these is done by filtering? (a) husk from rice grain (b) mud from water (c) bad grains from rice (d) chaff from wheat grain
5. 5.⚖️ 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) True (b) False
6. 6.🫗 How do we separate sugar from sugar water? (a) filtering (b) winnowing (c) evaporating (d) handpicking
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) yeast (c) muddy water (d) a clean glass
12. 12.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) muddy water (d) a clean glass
14. 14.⚖️ 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 funnel (b) the same muddy water (c) the filter material (d) how clear the water is
15. 15.True or false: small stones from dal is done by handpicking. (a) False (b) True
16. 16.🛟 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
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same funnel
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a battery cell (c) muddy water (d) cotton or cloth
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.⚖️ 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
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) muddy water (d) turmeric powder
25. 25.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
26. 26.🫗 Which of these is done by sieving? (a) salt from sea water (b) bad grains from rice (c) gravel from fine sand (d) sugar from sugar water
27. 27.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
28. 28.True or false: yeast is needed for the muddy water filter. (a) True (b) False
29. 29.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
30. 30.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) yes, if it is clear (d) no, germs may stay
31. 31.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) mud from water (c) gravel from fine sand (d) small stones from dal
32. 32.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
33. 33.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
34. 34.🫗 How do we separate chaff from wheat grain? (a) filtering (b) evaporating (c) sieving (d) winnowing
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
36. 36.🫗 How do we separate mud from water? (a) filtering (b) winnowing (c) sieving (d) evaporating
37. 37.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) a magnet (d) muddy water
38. 38.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
39. 39.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a mirror (c) cotton or cloth (d) a funnel

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