Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 728 · 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.🔮 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
2. 2.🛟 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
3. 3.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bran from wheat flour (c) chaff from wheat grain (d) mud from water
4. 4.⚖️ 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 measure it (c) we change it
5. 5.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
6. 6.🫗 Which of these is done by filtering? (a) small stones from dal (b) bad grains from rice (c) gravel from fine sand (d) tea leaves from tea
7. 7.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) turmeric powder (d) a balloon
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) sand and pebbles (d) a clean glass
10. 10.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) a funnel (d) muddy water
12. 12.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
13. 13.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
14. 14.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
15. 15.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) turmeric powder (d) sand and pebbles
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a battery cell (c) muddy water (d) a funnel
17. 17.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) sieving (d) winnowing
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
19. 19.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
20. 20.⚖️ 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
21. 21.True or false: bran from wheat flour is done by sieving. (a) True (b) False
22. 22.True or false: bad grains from rice is done by handpicking. (a) False (b) True
23. 23.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
24. 24.🫗 How do we separate bran from wheat flour? (a) handpicking (b) sieving (c) evaporating (d) winnowing
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) turmeric powder (d) muddy water
27. 27.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
28. 28.🔮 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) no, salt passes through (d) it turns to sugar
29. 29.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) how clear the water is (c) the same muddy water (d) the filter material
31. 31.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) salt from sea water (c) gravel from fine sand (d) small stones from dal
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the filter material (c) the same funnel (d) how clear the water is
33. 33.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
34. 34.🫗 How do we separate sugar from sugar water? (a) handpicking (b) evaporating (c) sieving (d) winnowing
35. 35.True or false: small stones from dal is done by winnowing. (a) False (b) True
36. 36.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bran from wheat flour (c) salt from sea water (d) bad grains from rice
37. 37.⚖️ 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
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a clean glass (c) a balloon (d) yeast
39. 39.🫗 Which of these is done by sieving? (a) salt from sea water (b) mud from water (c) bran from wheat flour (d) tea leaves from tea
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) a magnet (d) a mirror

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