Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 254 · 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? Which of these is the one thing we change? (a) the filter material (b) how clear the water is (c) the same muddy water (d) the same funnel
2. 2.🔮 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
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a mirror (d) cotton or cloth
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a battery cell (d) a funnel
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) yeast (d) muddy water
7. 7.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
8. 8.🧺 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 magnet
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a clean glass (d) a magnet
11. 11.🫗 How do we separate mud from water? (a) sieving (b) evaporating (c) winnowing (d) filtering
12. 12.🛟 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
13. 13.🫗 How do we separate bran from wheat flour? (a) evaporating (b) filtering (c) sieving (d) handpicking
14. 14.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
15. 15.⚖️ 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
16. 16.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
17. 17.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) chaff from wheat grain (c) tea leaves from tea (d) bad grains from rice
18. 18.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) gravel from fine sand (c) mud from water (d) tea leaves from tea
19. 19.⚖️ 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 glass
20. 20.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
21. 21.🫗 How do we separate salt from sea water? (a) handpicking (b) filtering (c) sieving (d) evaporating
22. 22.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the filter adds soap (d) the water evaporates
23. 23.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
24. 24.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
25. 25.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
26. 26.🫗 Which of these is done by winnowing? (a) mud from water (b) bad grains from rice (c) salt from sea water (d) chaff from wheat grain
27. 27.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
28. 28.True or false: small stones from dal is done by evaporating. (a) True (b) False
29. 29.⚖️ 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) False (b) True
30. 30.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
31. 31.🫗 Which of these is done by sieving? (a) salt from sea water (b) bad grains from rice (c) bran from wheat flour (d) tea leaves from tea
32. 32.True or false: small stones from dal is done by winnowing. (a) True (b) False
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) sand and pebbles (d) a clean glass
34. 34.⚖️ 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 change it (c) we measure it
35. 35.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
36. 36.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
37. 37.True or false: mud from water is done by handpicking. (a) True (b) False
38. 38.🫗 How do we separate tea leaves from tea? (a) handpicking (b) evaporating (c) sieving (d) filtering
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same funnel (c) the filter material
40. 40.True or false: gravel from fine sand is done by winnowing. (a) False (b) True

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