Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 458 · 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 amount poured”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) muddy water (c) a mirror (d) a balloon
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) a battery cell (d) turmeric powder
5. 5.🫗 How do we separate husk from rice grain? (a) sieving (b) evaporating (c) winnowing (d) handpicking
6. 6.🫗 How do we separate bran from wheat flour? (a) filtering (b) handpicking (c) evaporating (d) sieving
7. 7.⚖️ 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
8. 8.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
9. 9.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it turns to sand (d) it floats on top
10. 10.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the amount poured
13. 13.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
15. 15.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
16. 16.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
17. 17.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) husk from rice grain (c) sugar from sugar water (d) chaff from wheat grain
18. 18.⚖️ 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
19. 19.⚖️ 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 same funnel (c) how clear the water is (d) the filter material
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) muddy water (d) a funnel
22. 22.True or false: yeast is needed for the muddy water filter. (a) True (b) False
23. 23.🫗 Which of these is done by sieving? (a) bad grains from rice (b) chaff from wheat grain (c) bran from wheat flour (d) salt from sea water
24. 24.🫗 Which of these is done by handpicking? (a) salt from sea water (b) bad grains from rice (c) tea leaves from tea (d) chaff from wheat grain
25. 25.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
26. 26.True or false: bran from wheat flour is done by sieving. (a) True (b) False
27. 27.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) chaff from wheat grain (c) bran from wheat flour (d) salt from sea water
28. 28.⚖️ 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
29. 29.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
30. 30.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
31. 31.🫗 Which of these is done by winnowing? (a) mud from water (b) husk from rice grain (c) sugar from sugar water (d) bran from wheat flour
32. 32.True or false: sugar from sugar water is done by sieving. (a) True (b) False
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
34. 34.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
36. 36.True or false: husk from rice grain is done by winnowing. (a) False (b) True
37. 37.🫗 How do we separate sugar from sugar water? (a) handpicking (b) filtering (c) evaporating (d) sieving
38. 38.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
39. 39.⚖️ 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
40. 40.🫗 How do we separate small stones from dal? (a) sieving (b) handpicking (c) winnowing (d) filtering

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