Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 66 · 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.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is salty (d) clear water is hot
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) the salt (d) nothing
3. 3.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
4. 4.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
5. 5.🔮 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
6. 6.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
7. 7.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) husk from rice grain (c) small stones from dal (d) bad grains from rice
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a mirror
10. 10.⚖️ 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
11. 11.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
12. 12.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) winnowing (d) filtering
13. 13.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) muddy water (d) a battery cell
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) sand and pebbles (c) muddy water (d) cotton or cloth
16. 16.⚖️ 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 change it (c) we keep it the same
17. 17.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) sugar from sugar water (c) tea leaves from tea (d) mud from water
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) a clean glass (d) muddy water
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a balloon (d) muddy water
20. 20.⚖️ 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
21. 21.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
22. 22.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
23. 23.🔮 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
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) cotton or cloth (d) sand and pebbles
25. 25.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) yeast (d) sand and pebbles
26. 26.True or false: salt from sea water is done by winnowing. (a) False (b) True
27. 27.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) sieving (d) handpicking
28. 28.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) handpicking (d) winnowing
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) sand and pebbles (d) yeast
30. 30.True or false: small stones from dal is done by handpicking. (a) False (b) True
31. 31.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
32. 32.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
33. 33.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) small stones from dal (c) bran from wheat flour (d) tea leaves from tea
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a mirror (d) muddy water
37. 37.🫗 How do we separate husk from rice grain? (a) handpicking (b) evaporating (c) sieving (d) winnowing
38. 38.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) evaporating (d) winnowing
39. 39.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) gravel from fine sand (c) bran from wheat flour (d) salt from sea water
40. 40.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False

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