Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 84 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
2. 2.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) turmeric powder
4. 4.🫗 How do we separate bran from wheat flour? (a) sieving (b) winnowing (c) filtering (d) evaporating
5. 5.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) cotton or cloth (d) a balloon
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
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 change it (b) we keep it the same (c) we measure it
9. 9.True or false: bran from wheat flour is done by filtering. (a) True (b) False
10. 10.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) turmeric powder (d) a funnel
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) how clear the water is (b) the same glass (c) the same funnel (d) the filter material
13. 13.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it sinks to the bottom (d) it dissolves
14. 14.True or false: small stones from dal is done by sieving. (a) False (b) True
15. 15.⚖️ 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
16. 16.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
17. 17.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
18. 18.🫗 How do we separate gravel from fine sand? (a) winnowing (b) filtering (c) sieving (d) handpicking
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
20. 20.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) husk from rice grain (c) bran from wheat flour (d) mud from water
21. 21.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bad grains from rice (c) mud from water (d) salt from sea water
22. 22.🫗 How do we separate chaff from wheat grain? (a) sieving (b) winnowing (c) handpicking (d) filtering
23. 23.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a battery cell (d) a mirror
24. 24.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
25. 25.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
26. 26.True or false: small stones from dal is done by evaporating. (a) True (b) False
27. 27.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
28. 28.🫗 How do we separate tea leaves from tea? (a) filtering (b) handpicking (c) sieving (d) evaporating
29. 29.True or false: chaff from wheat grain is done by handpicking. (a) True (b) False
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.True or false: gravel from fine sand is done by sieving. (a) False (b) True
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
33. 33.⚖️ 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
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.True or false: bran from wheat flour is done by sieving. (a) False (b) True
37. 37.🫗 How do we separate small stones from dal? (a) filtering (b) handpicking (c) evaporating (d) sieving
38. 38.⚖️ 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 change it (c) we measure it
39. 39.🔮 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
40. 40.True or false: mud from water is done by filtering. (a) True (b) False

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