Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 974 · 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 needed for the muddy water filter. (a) True (b) False
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.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, always (d) yes, if it is clear
4. 4.🫗 Which of these is done by winnowing? (a) mud from water (b) gravel from fine sand (c) tea leaves from tea (d) chaff from wheat grain
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a magnet (d) sand and pebbles
6. 6.🫗 Which of these is done by winnowing? (a) mud from water (b) salt from sea water (c) bran from wheat flour (d) husk from rice grain
7. 7.🫗 How do we separate bad grains from rice? (a) evaporating (b) filtering (c) winnowing (d) handpicking
8. 8.⚖️ 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
9. 9.True or false: small stones from dal is done by handpicking. (a) False (b) True
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.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
12. 12.⚖️ 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 filter material (c) how clear the water is (d) the same funnel
13. 13.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
15. 15.⚖️ 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) how clear the water is (c) the same glass (d) the filter material
16. 16.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
17. 17.True or false: salt from sea water is done by handpicking. (a) True (b) False
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) cotton or cloth (d) a funnel
19. 19.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
20. 20.🫗 How do we separate gravel from fine sand? (a) evaporating (b) handpicking (c) sieving (d) winnowing
21. 21.🫗 How do we separate sugar from sugar water? (a) evaporating (b) sieving (c) winnowing (d) handpicking
22. 22.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) yeast (d) a funnel
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a mirror (d) muddy water
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
26. 26.⚖️ 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 keep it the same (b) we measure it (c) we change it
27. 27.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
28. 28.⚖️ 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) True (b) False
29. 29.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) filtering (d) sieving
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
31. 31.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) cotton or cloth (d) sand and pebbles
33. 33.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
34. 34.⚖️ 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) True (b) False
35. 35.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) handpicking (d) winnowing
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
37. 37.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
38. 38.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) cotton or cloth (d) a balloon
40. 40.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates

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