Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 108 · 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: how clear the water is is the one thing we change. (a) True (b) False
2. 2.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a clean glass (c) a magnet (d) a mirror
3. 3.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) sieving (d) filtering
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) a funnel (d) cotton or cloth
5. 5.True or false: salt from sea water is done by evaporating. (a) False (b) True
6. 6.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a battery cell (d) muddy water
8. 8.⚖️ 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 muddy water (b) the amount poured (c) the filter material (d) the same glass
9. 9.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) handpicking (d) filtering
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same funnel (c) the filter material
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) muddy water (d) a balloon
13. 13.True or false: bad grains from rice is done by evaporating. (a) False (b) True
14. 14.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
15. 15.⚖️ 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
16. 16.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
17. 17.🫗 Which of these is done by winnowing? (a) salt from sea water (b) husk from rice grain (c) mud from water (d) small stones from dal
18. 18.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
19. 19.🛟 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
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) yeast (d) muddy water
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) a balloon (d) sand and pebbles
22. 22.🫗 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
23. 23.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
24. 24.🫗 How do we separate bran from wheat flour? (a) filtering (b) evaporating (c) handpicking (d) sieving
25. 25.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) winnowing (d) evaporating
26. 26.True or false: a magnet is not 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? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
28. 28.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
29. 29.🔮 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
30. 30.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
31. 31.🔮 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
32. 32.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
33. 33.🫗 How do we separate bad grains from rice? (a) evaporating (b) filtering (c) sieving (d) handpicking
34. 34.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
35. 35.True or false: small stones from dal is done by evaporating. (a) False (b) True
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) cotton or cloth (c) a clean glass (d) sand and pebbles
37. 37.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
38. 38.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a balloon (d) muddy water
40. 40.⚖️ 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 glass (d) how clear the water is

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