Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 496 · 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? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, if it is cold (d) yes, always
3. 3.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
4. 4.True or false: yeast is needed for the muddy water filter. (a) False (b) True
5. 5.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
6. 6.True or false: salt from sea water is done by filtering. (a) False (b) True
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a balloon (d) a clean glass
8. 8.⚖️ 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 change it (c) we measure it
9. 9.⚖️ 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 filter material (c) the amount poured
10. 10.⚖️ 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 amount poured (c) the same muddy water (d) how clear the water is
11. 11.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) evaporating (d) sieving
12. 12.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
13. 13.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
14. 14.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
15. 15.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bad grains from rice (c) tea leaves from tea (d) sugar from sugar water
16. 16.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) filtering (d) sieving
17. 17.⚖️ 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) False (b) True
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same funnel (c) how clear the water is (d) the filter material
19. 19.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
20. 20.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) bran from wheat flour (c) tea leaves from tea (d) husk from rice grain
21. 21.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
22. 22.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is hot (d) clear water is sweet
23. 23.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
24. 24.⚖️ 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 change it (b) we measure it (c) we keep it the same
25. 25.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) sieving (d) filtering
26. 26.🔮 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
27. 27.True or false: small stones from dal is done by handpicking. (a) True (b) False
28. 28.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
29. 29.True or false: mud from water is done by winnowing. (a) False (b) True
30. 30.🫗 Which of these is done by evaporating? (a) salt from sea water (b) chaff from wheat grain (c) husk from rice grain (d) gravel from fine sand
31. 31.🫗 Which of these is done by sieving? (a) mud from water (b) chaff from wheat grain (c) salt from sea water (d) bran from wheat flour
32. 32.⚖️ 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) False (b) True
33. 33.🫗 Which of these is done by sieving? (a) small stones from dal (b) bad grains from rice (c) gravel from fine sand (d) tea leaves from tea
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a balloon (d) a funnel
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
37. 37.⚖️ 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 change it (c) we keep it the same
38. 38.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the salt (d) the water
39. 39.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
40. 40.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) handpicking (d) sieving

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