Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 378 · 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) a clean glass (b) a funnel (c) turmeric powder (d) cotton or cloth
2. 2.⚖️ 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 funnel (c) the amount poured (d) the same muddy water
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) cotton or cloth (d) a mirror
4. 4.🔮 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
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
7. 7.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) a battery cell (d) a magnet
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 measure it (c) we keep it the same
9. 9.🛟 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
10. 10.⚖️ 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
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a clean glass (d) a mirror
12. 12.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a mirror (d) sand and pebbles
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
15. 15.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
16. 16.True or false: husk from rice grain is done by evaporating. (a) False (b) True
17. 17.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
20. 20.🫗 Which of these is done by handpicking? (a) mud from water (b) chaff from wheat grain (c) tea leaves from tea (d) small stones from dal
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) a funnel (d) a clean glass
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a funnel (c) cotton or cloth (d) a clean glass
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a clean glass (d) a magnet
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) muddy water (c) turmeric powder (d) a mirror
25. 25.True or false: bad grains from rice is done by filtering. (a) False (b) True
26. 26.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) filtering (d) handpicking
29. 29.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the filter material (c) the same muddy water (d) the same funnel
31. 31.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) evaporating (d) handpicking
32. 32.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) filtering (d) handpicking
33. 33.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) mud from water (c) salt from sea water (d) bran from wheat flour
34. 34.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
35. 35.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) sugar from sugar water (c) bad grains from rice (d) chaff from wheat grain
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the mud (d) the water
37. 37.True or false: mud from water is done by winnowing. (a) False (b) True
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
39. 39.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) small stones from dal (c) bran from wheat flour (d) salt from sea water
40. 40.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed

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