Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 755 · 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 kept the same? (a) how clear the water is (b) the filter material (c) the same muddy water
2. 2.🫗 Which of these is done by sieving? (a) mud from water (b) bran from wheat flour (c) tea leaves from tea (d) sugar from sugar water
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a balloon
4. 4.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) mud from water (c) salt from sea water (d) bran from wheat flour
5. 5.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
6. 6.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) winnowing (d) filtering
7. 7.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
8. 8.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a battery cell (d) sand and pebbles
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 keep it the same (b) we measure it (c) we change it
11. 11.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bad grains from rice (c) husk from rice grain (d) chaff from wheat grain
12. 12.True or false: bran from wheat flour is done by sieving. (a) False (b) True
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
14. 14.True or false: small stones from dal is done by sieving. (a) False (b) True
15. 15.🫗 How do we separate tea leaves from tea? (a) filtering (b) handpicking (c) evaporating (d) sieving
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 keep it the same (b) we measure it (c) we change it
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) a clean glass (d) a funnel
18. 18.🔮 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
19. 19.🛟 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
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a clean glass (c) yeast (d) a battery cell
21. 21.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
22. 22.⚖️ 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) how clear the water is (c) the amount poured (d) the same muddy water
23. 23.⚖️ 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
24. 24.🫗 Which of these is done by sieving? (a) mud from water (b) bad grains from rice (c) gravel from fine sand (d) small stones from dal
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) turmeric powder (d) sand and pebbles
28. 28.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
29. 29.True or false: salt from sea water is done by evaporating. (a) True (b) False
30. 30.⚖️ 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
31. 31.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
32. 32.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) chaff from wheat grain (c) mud from water (d) sugar from sugar water
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a funnel (d) cotton or cloth
34. 34.🔍 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
35. 35.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
36. 36.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
38. 38.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a funnel (c) a balloon (d) a mirror
40. 40.🫗 Which of these is done by handpicking? (a) salt from sea water (b) chaff from wheat grain (c) tea leaves from tea (d) small stones from dal

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