Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 682 · 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) the water (b) the salt (c) nothing (d) the mud
2. 2.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
3. 3.🫗 Which of these is done by winnowing? (a) small stones from dal (b) tea leaves from tea (c) husk from rice grain (d) sugar from sugar water
4. 4.🛟 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
5. 5.True or false: chaff from wheat grain is done by handpicking. (a) True (b) False
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a mirror
8. 8.⚖️ 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 change it (c) we measure it
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same muddy water (c) the amount poured (d) how clear the water is
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a battery cell (d) sand and pebbles
11. 11.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
12. 12.🫗 How do we separate small stones from dal? (a) evaporating (b) sieving (c) handpicking (d) filtering
13. 13.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) winnowing (d) filtering
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) a battery cell
16. 16.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
17. 17.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) yeast (d) a clean glass
19. 19.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) sieving (d) handpicking
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
21. 21.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
22. 22.True or false: small stones from dal is done by handpicking. (a) False (b) True
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) cotton or cloth (d) yeast
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) sand and pebbles (d) a funnel
25. 25.⚖️ 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
26. 26.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
27. 27.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) husk from rice grain (c) gravel from fine sand (d) chaff from wheat grain
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) muddy water (d) a clean glass
29. 29.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
30. 30.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
31. 31.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
32. 32.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) yeast (d) sand and pebbles
34. 34.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
35. 35.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) a magnet (d) muddy water
36. 36.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
37. 37.True or false: bad grains from rice is done by winnowing. (a) True (b) False
38. 38.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind

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