Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 228 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) turmeric powder
2. 2.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) sieving (d) handpicking
3. 3.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) sugar from sugar water (c) husk from rice grain (d) salt from sea water
4. 4.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
5. 5.True or false: yeast 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 what we measure? (a) the same funnel (b) the filter material (c) how clear the water is (d) the same glass
7. 7.True or false: salt from sea water is done by evaporating. (a) True (b) False
8. 8.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) small stones from dal (c) mud from water (d) salt from sea water
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
10. 10.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
11. 11.🫗 How do we separate bran from wheat flour? (a) sieving (b) filtering (c) winnowing (d) handpicking
12. 12.True or false: bad grains from rice is done by handpicking. (a) True (b) False
13. 13.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) sugar from sugar water (c) gravel from fine sand (d) bran from wheat flour
14. 14.🫗 How do we separate tea leaves from tea? (a) filtering (b) winnowing (c) sieving (d) evaporating
15. 15.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
17. 17.⚖️ 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
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
20. 20.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
21. 21.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
22. 22.⚖️ 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 muddy water (b) the same funnel (c) the same glass (d) the filter material
23. 23.⚖️ 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) the amount poured (c) how clear the water is
24. 24.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
25. 25.🫗 How do we separate small stones from dal? (a) handpicking (b) filtering (c) sieving (d) evaporating
26. 26.True or false: bran from wheat flour is done by sieving. (a) True (b) False
27. 27.🫗 How do we separate chaff from wheat grain? (a) filtering (b) sieving (c) winnowing (d) handpicking
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.True or false: mud from water is done by sieving. (a) True (b) False
30. 30.🫗 Which of these is done by sieving? (a) salt from sea water (b) mud from water (c) gravel from fine sand (d) bad grains from rice
31. 31.🫗 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
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) cotton or cloth (c) a clean glass (d) a funnel
33. 33.True or false: small stones from dal is done by filtering. (a) True (b) False
34. 34.⚖️ 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 change it (c) we keep it the same
35. 35.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
38. 38.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
39. 39.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
40. 40.⚖️ 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 same glass

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