Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 52 · 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) False (b) True
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) turmeric powder (d) a clean glass
3. 3.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
4. 4.True or false: bad grains from rice is done by evaporating. (a) False (b) True
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
7. 7.⚖️ 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
8. 8.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) mud from water (c) sugar from sugar water (d) bran from wheat flour
9. 9.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
10. 10.True or false: gravel from fine sand is done by sieving. (a) True (b) False
11. 11.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) muddy water (d) turmeric powder
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same glass (c) how clear the water is (d) the amount poured
13. 13.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
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 sand (c) it turns to sugar (d) no, salt passes through
15. 15.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
16. 16.🫗 Which of these is done by sieving? (a) small stones from dal (b) chaff from wheat grain (c) bran from wheat flour (d) bad grains from rice
17. 17.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
18. 18.True or false: mud from water is done by handpicking. (a) True (b) False
19. 19.⚖️ 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) the filter material (c) the same funnel (d) how clear the water is
20. 20.🫗 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
21. 21.True or false: small stones from dal is done by evaporating. (a) True (b) False
22. 22.🫗 Which of these is done by evaporating? (a) mud from water (b) tea leaves from tea (c) small stones from dal (d) sugar from sugar water
23. 23.🫗 How do we separate mud from water? (a) filtering (b) winnowing (c) sieving (d) handpicking
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
25. 25.⚖️ 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) False (b) True
26. 26.🫗 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
27. 27.🫗 Which of these is done by sieving? (a) small stones from dal (b) gravel from fine sand (c) husk from rice grain (d) mud from water
28. 28.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
29. 29.True or false: salt from sea water is done by handpicking. (a) True (b) False
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) turmeric powder (d) sand and pebbles
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a battery cell (d) yeast
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) cotton or cloth (d) muddy water
33. 33.🔮 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
34. 34.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) sieving (d) filtering
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
36. 36.⚖️ 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 measure it (c) we keep it the same
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) muddy water (c) cotton or cloth (d) a clean glass
38. 38.🫗 Which of these is done by handpicking? (a) small stones from dal (b) gravel from fine sand (c) bran from wheat flour (d) sugar from sugar water
39. 39.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) cotton or cloth (d) yeast

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