Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 504 · 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: muddy water is not needed for the muddy water filter. (a) False (b) True
2. 2.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
3. 3.⚖️ 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
4. 4.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is hot (d) clear water is salty
6. 6.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) winnowing (d) handpicking
7. 7.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
8. 8.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a mirror
10. 10.⚖️ 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
11. 11.True or false: small stones from dal is done by sieving. (a) False (b) True
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) a funnel (d) a magnet
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
14. 14.⚖️ 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 muddy water (c) the filter material (d) the same funnel
15. 15.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) mud from water (c) salt from sea water (d) tea leaves from tea
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) cotton or cloth (c) a clean glass (d) muddy water
17. 17.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
18. 18.⚖️ 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) how clear the water is (c) the amount poured (d) the same muddy water
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
20. 20.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
21. 21.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
23. 23.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
25. 25.🔮 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) it turns to sand (d) no, salt passes through
26. 26.True or false: small stones from dal is done by handpicking. (a) True (b) False
27. 27.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
28. 28.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
29. 29.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
30. 30.True or false: bad grains from rice is done by handpicking. (a) True (b) False
31. 31.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
32. 32.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
34. 34.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a mirror (d) cotton or cloth
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a balloon (d) a funnel
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
38. 38.True or false: bad grains from rice is done by filtering. (a) False (b) True
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
40. 40.🫗 Which of these is done by winnowing? (a) small stones from dal (b) salt from sea water (c) chaff from wheat grain (d) gravel from fine sand

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