Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 302 · 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: bran from wheat flour is done by winnowing. (a) False (b) True
2. 2.True or false: bran from wheat flour is done by filtering. (a) True (b) False
3. 3.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
4. 4.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) yeast (d) a balloon
6. 6.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) chaff from wheat grain (c) husk from rice grain (d) bran from wheat flour
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same funnel (c) how clear the water is (d) the amount poured
8. 8.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a funnel (d) a magnet
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the same muddy water (d) the same funnel
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
12. 12.True or false: husk from rice grain is done by filtering. (a) False (b) True
13. 13.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
14. 14.🫗 Which of these is done by sieving? (a) mud from water (b) chaff from wheat grain (c) bad grains from rice (d) gravel from fine sand
15. 15.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) yeast (d) muddy water
16. 16.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
17. 17.True or false: bran from wheat flour is done by sieving. (a) False (b) True
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a balloon (d) a funnel
19. 19.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) salt from sea water (c) bad grains from rice (d) chaff from wheat grain
20. 20.🫗 Which of these is done by evaporating? (a) salt from sea water (b) bran from wheat flour (c) gravel from fine sand (d) small stones from dal
21. 21.🛟 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
22. 22.⚖️ 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 measure it (c) we change it
23. 23.🫗 How do we separate tea leaves from tea? (a) handpicking (b) filtering (c) winnowing (d) sieving
24. 24.True or false: small stones from dal is done by evaporating. (a) True (b) False
25. 25.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
26. 26.🫗 How do we separate chaff from wheat grain? (a) filtering (b) evaporating (c) winnowing (d) sieving
27. 27.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) handpicking (d) filtering
28. 28.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
29. 29.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
30. 30.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) evaporating (d) winnowing
31. 31.True or false: husk from rice grain is done by winnowing. (a) True (b) False
32. 32.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) clearer (d) salty
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) turmeric powder (d) a mirror
36. 36.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
37. 37.True or false: tea leaves from tea is done by filtering. (a) True (b) False
38. 38.🫗 Which of these is done by winnowing? (a) mud from water (b) bran from wheat flour (c) bad grains from rice (d) husk from rice grain
39. 39.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the water evaporates (d) the filter adds soap
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) a clean glass (d) a battery cell

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