Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 222 · 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? Which of these is what we measure? (a) the same glass (b) the same funnel (c) how clear the water is (d) the filter material
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) muddy water (d) a battery cell
3. 3.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) a funnel (d) a magnet
5. 5.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) winnowing (d) sieving
6. 6.⚖️ 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
7. 7.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
8. 8.🫗 How do we separate bran from wheat flour? (a) filtering (b) handpicking (c) sieving (d) winnowing
9. 9.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) salt from sea water (c) husk from rice grain (d) tea leaves from tea
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) salt from sea water (c) small stones from dal (d) husk from rice grain
14. 14.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter traps mud (d) the filter adds soap
15. 15.🛟 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
16. 16.⚖️ 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
17. 17.True or false: small stones from dal is done by handpicking. (a) False (b) True
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a magnet (d) a clean glass
19. 19.🧺 Do we need a funnel 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? Which of these is the one thing we change? (a) the same glass (b) the filter material (c) the same funnel (d) the amount poured
21. 21.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
22. 22.🫗 How do we separate tea leaves from tea? (a) filtering (b) winnowing (c) evaporating (d) sieving
23. 23.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
24. 24.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) yeast (d) a funnel
26. 26.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) turmeric powder (d) cotton or cloth
29. 29.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) both stay behind (d) tea stays behind
30. 30.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
31. 31.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) muddy water (c) a battery cell (d) turmeric powder
33. 33.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) filtering (d) sieving
34. 34.⚖️ 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
35. 35.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
36. 36.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
37. 37.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) husk from rice grain (c) salt from sea water (d) tea leaves from tea
38. 38.⚖️ 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
39. 39.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a clean glass (c) cotton or cloth (d) a funnel

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