Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 238 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a battery cell (d) cotton or cloth
2. 2.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a clean glass (d) turmeric powder
4. 4.⚖️ 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
5. 5.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) yes, if it is clear (d) no, germs may stay
6. 6.🫗 How do we separate mud from water? (a) sieving (b) handpicking (c) evaporating (d) filtering
7. 7.True or false: husk from rice grain is done by sieving. (a) False (b) True
8. 8.True or false: salt from sea water is done by filtering. (a) True (b) False
9. 9.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) a balloon (d) a battery cell
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a funnel (d) a balloon
13. 13.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
14. 14.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) sand and pebbles (d) yeast
18. 18.True or false: bran from wheat flour is done by sieving. (a) False (b) True
19. 19.⚖️ 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) the same muddy water (c) how clear the water is (d) the filter material
20. 20.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) a balloon
22. 22.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bad grains from rice (c) mud from water (d) small stones from dal
23. 23.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) cotton or cloth (d) a balloon
25. 25.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
26. 26.⚖️ 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
27. 27.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
28. 28.True or false: yeast is needed for the muddy water filter. (a) True (b) False
29. 29.🫗 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
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
31. 31.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
32. 32.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) a funnel (d) a clean glass
34. 34.🫗 Which of these is done by evaporating? (a) mud from water (b) sugar from sugar water (c) bad grains from rice (d) small stones from dal
35. 35.True or false: small stones from dal is done by handpicking. (a) True (b) False
36. 36.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a mirror (c) sand and pebbles (d) a clean glass
38. 38.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
39. 39.True or false: small stones from dal is done by winnowing. (a) True (b) False
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) cotton or cloth (d) a magnet

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