Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 607 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) yes, all of it (d) no, salt passes through
3. 3.⚖️ 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 same muddy water
4. 4.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
5. 5.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) winnowing (d) evaporating
6. 6.True or false: gravel from fine sand is done by winnowing. (a) False (b) True
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) turmeric powder (c) a funnel (d) muddy water
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same glass (c) the filter material (d) the same muddy water
9. 9.🫗 Which of these is done by sieving? (a) bad grains from rice (b) gravel from fine sand (c) tea leaves from tea (d) salt from sea water
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) muddy water (d) turmeric powder
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) yeast (d) cotton or cloth
13. 13.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) bran from wheat flour (c) chaff from wheat grain (d) sugar from sugar water
14. 14.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) small stones from dal (c) bran from wheat flour (d) husk from rice grain
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) sand and pebbles (c) a funnel (d) cotton or cloth
16. 16.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) winnowing (d) filtering
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) yeast (d) cotton or cloth
18. 18.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) sand and pebbles (d) muddy water
20. 20.🫗 Which of these is done by filtering? (a) small stones from dal (b) bad grains from rice (c) tea leaves from tea (d) salt from sea water
21. 21.True or false: small stones from dal is done by handpicking. (a) True (b) False
22. 22.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
23. 23.⚖️ 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
24. 24.⚖️ 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 measure it (b) we keep it the same (c) we change it
25. 25.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) a mirror (d) turmeric powder
26. 26.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.True or false: mud from water is done by handpicking. (a) True (b) False
29. 29.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
30. 30.⚖️ 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
31. 31.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
32. 32.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
34. 34.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
35. 35.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) a clean glass (d) muddy water
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a battery cell (c) muddy water (d) cotton or cloth
39. 39.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
40. 40.True or false: bad grains from rice is done by winnowing. (a) True (b) False

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