Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 774 · 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.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) gravel from fine sand (c) chaff from wheat grain (d) mud from water
2. 2.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
3. 3.True or false: bad grains from rice is done by winnowing. (a) False (b) True
4. 4.True or false: small stones from dal is done by winnowing. (a) False (b) True
5. 5.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) no, germs may stay (d) yes, always
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) a mirror (d) muddy water
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
8. 8.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
10. 10.🫗 How do we separate tea leaves from tea? (a) winnowing (b) sieving (c) evaporating (d) filtering
11. 11.True or false: sugar from sugar water is done by filtering. (a) True (b) False
12. 12.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
14. 14.🫗 How do we separate husk from rice grain? (a) sieving (b) winnowing (c) filtering (d) handpicking
15. 15.⚖️ 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 keep it the same (b) we measure it (c) we change it
16. 16.True or false: gravel from fine sand is done by evaporating. (a) False (b) True
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) sand and pebbles (d) a battery cell
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 change it (c) we measure it
19. 19.🫗 How do we separate mud from water? (a) sieving (b) winnowing (c) filtering (d) handpicking
20. 20.🫗 Which of these is done by sieving? (a) mud from water (b) tea leaves from tea (c) small stones from dal (d) bran from wheat flour
21. 21.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a mirror (d) sand and pebbles
23. 23.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) chaff from wheat grain (c) small stones from dal (d) bran from wheat flour
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a mirror (c) a clean glass (d) muddy water
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) yeast (c) muddy water (d) a clean glass
28. 28.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) nothing is needed (d) wipe hands on face
29. 29.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
30. 30.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) sieving (d) winnowing
31. 31.🔮 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
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) sand and pebbles (d) turmeric powder
33. 33.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
34. 34.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
35. 35.⚖️ 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 amount poured (c) the same funnel (d) the same glass
36. 36.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) muddy water (d) a clean glass
38. 38.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
39. 39.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
40. 40.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) muddier (d) clearer

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