Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 686 · 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: cotton or cloth is needed for the muddy water filter. (a) False (b) True
2. 2.🫗 How do we separate small stones from dal? (a) evaporating (b) winnowing (c) handpicking (d) sieving
3. 3.🫗 How do we separate tea leaves from tea? (a) handpicking (b) evaporating (c) filtering (d) sieving
4. 4.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) mud from water (c) salt from sea water (d) small stones from dal
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) muddy water (d) a funnel
6. 6.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
7. 7.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) a magnet (d) a mirror
8. 8.⚖️ 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
9. 9.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) winnowing (d) filtering
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) muddy water (d) turmeric powder
11. 11.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) a magnet (d) a balloon
12. 12.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
13. 13.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
14. 14.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
15. 15.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is hot (d) clear water is sweet
17. 17.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
18. 18.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
20. 20.True or false: gravel from fine sand is done by winnowing. (a) True (b) False
21. 21.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) sieving (d) winnowing
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🫗 How do we separate bran from wheat flour? (a) sieving (b) winnowing (c) handpicking (d) filtering
24. 24.⚖️ 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 glass (b) the filter material (c) the amount poured (d) the same muddy water
25. 25.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is clear (d) yes, if it is cold
26. 26.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
27. 27.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
28. 28.True or false: bran from wheat flour is done by sieving. (a) False (b) True
29. 29.True or false: gravel from fine sand is done by evaporating. (a) False (b) True
30. 30.⚖️ 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 same funnel (c) how clear the water is
31. 31.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
32. 32.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
33. 33.🔮 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
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a magnet (d) a clean glass
35. 35.True or false: small stones from dal is done by handpicking. (a) True (b) False
36. 36.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) yeast (d) muddy water
38. 38.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
39. 39.⚖️ 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) how clear the water is (c) the same muddy water (d) the filter material
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same

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