Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 421 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) turmeric powder (d) cotton or cloth
3. 3.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
4. 4.True or false: muddy water 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) True (b) False
6. 6.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) sugar from sugar water (c) husk from rice grain (d) bad grains from rice
7. 7.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) yeast
9. 9.⚖️ 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 filter material (d) the same muddy water
10. 10.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
11. 11.⚖️ 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
12. 12.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
13. 13.⚖️ 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
14. 14.🫗 How do we separate gravel from fine sand? (a) filtering (b) sieving (c) handpicking (d) winnowing
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) muddy water (c) cotton or cloth (d) sand and pebbles
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) a funnel (d) sand and pebbles
18. 18.🛟 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
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a balloon (d) muddy water
20. 20.⚖️ 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) how clear the water is (c) the same muddy water (d) the filter material
21. 21.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) filtering (d) evaporating
22. 22.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) muddier (d) hot
23. 23.🫗 How do we separate tea leaves from tea? (a) sieving (b) filtering (c) evaporating (d) winnowing
24. 24.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bad grains from rice (c) gravel from fine sand (d) bran from wheat flour
25. 25.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
26. 26.🫗 How do we separate salt from sea water? (a) filtering (b) sieving (c) handpicking (d) evaporating
27. 27.True or false: small stones from dal is done by handpicking. (a) True (b) False
28. 28.⚖️ 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
29. 29.True or false: gravel from fine sand is done by sieving. (a) False (b) True
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) a mirror (d) cotton or cloth
31. 31.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) tea stays behind (d) leaves stay behind
32. 32.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
33. 33.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ 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) True (b) False
35. 35.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) evaporating (d) winnowing
36. 36.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) a magnet (d) sand and pebbles
37. 37.⚖️ 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
38. 38.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
39. 39.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
40. 40.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True

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