Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 208 · 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.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) chaff from wheat grain (c) mud from water (d) tea leaves from tea
2. 2.🛟 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
3. 3.⚖️ 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
4. 4.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
5. 5.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
6. 6.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
7. 7.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) how clear the water is (c) the amount poured (d) the same muddy water
9. 9.⚖️ 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
10. 10.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
11. 11.True or false: yeast is needed for the muddy water filter. (a) True (b) False
12. 12.⚖️ 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) True (b) False
13. 13.True or false: husk from rice grain is done by winnowing. (a) False (b) True
14. 14.True or false: small stones from dal is done by evaporating. (a) False (b) True
15. 15.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) a clean glass (d) a magnet
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) muddy water (d) yeast
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a magnet (d) muddy water
19. 19.⚖️ 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 same funnel
20. 20.⚖️ 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
21. 21.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) a magnet (d) cotton or cloth
23. 23.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) handpicking (d) sieving
24. 24.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
25. 25.⚖️ 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
26. 26.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
27. 27.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) handpicking (d) winnowing
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) turmeric powder (d) muddy water
29. 29.⚖️ 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 keep it the same (c) we measure it
30. 30.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
31. 31.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves stay behind (d) leaves pass through
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) muddy water (c) a clean glass (d) a funnel
36. 36.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
37. 37.🫗 How do we separate salt from sea water? (a) sieving (b) filtering (c) evaporating (d) handpicking
38. 38.⚖️ 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
39. 39.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) small stones from dal (c) chaff from wheat grain (d) bran from wheat flour
40. 40.⚖️ 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

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