Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 106 · 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.🫗 How do we separate bran from wheat flour? (a) handpicking (b) sieving (c) winnowing (d) evaporating
2. 2.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
3. 3.⚖️ 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 filter material (c) the amount poured
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) cotton or cloth (d) turmeric powder
5. 5.True or false: gravel from fine sand is done by sieving. (a) True (b) False
6. 6.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
8. 8.🫗 Which of these is done by handpicking? (a) salt from sea water (b) husk from rice grain (c) chaff from wheat grain (d) small stones from dal
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
11. 11.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) chaff from wheat grain (c) gravel from fine sand (d) small stones from dal
12. 12.⚖️ 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) the same funnel (c) how clear the water is
13. 13.⚖️ 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 filter material (c) the same muddy water
14. 14.🫗 How do we separate gravel from fine sand? (a) sieving (b) filtering (c) handpicking (d) evaporating
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) yes, all of it (d) it turns to sugar
16. 16.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
18. 18.⚖️ 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) True (b) False
19. 19.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) muddy water (d) a balloon
21. 21.⚖️ 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
22. 22.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
23. 23.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) evaporating (d) filtering
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) a clean glass (d) yeast
25. 25.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) tea leaves from tea (c) husk from rice grain (d) sugar from sugar water
26. 26.🫗 How do we separate sugar from sugar water? (a) sieving (b) evaporating (c) handpicking (d) filtering
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same glass (b) the filter material (c) the same funnel (d) the same muddy water
28. 28.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
29. 29.⚖️ 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) True (b) False
30. 30.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) small stones from dal (c) bad grains from rice (d) husk from rice grain
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a clean glass (d) yeast
33. 33.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) handpicking (d) evaporating
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) cotton or cloth (d) a funnel
35. 35.True or false: small stones from dal is done by winnowing. (a) False (b) True
36. 36.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
37. 37.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a funnel (d) turmeric powder
39. 39.True or false: yeast is needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) a funnel (d) muddy water

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