Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 242 · 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 amount poured”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) turmeric powder (c) muddy water (d) a funnel
4. 4.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
5. 5.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) winnowing (d) sieving
6. 6.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
7. 7.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
8. 8.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
9. 9.⚖️ 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
10. 10.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
11. 11.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) bran from wheat flour (c) small stones from dal (d) sugar from sugar water
12. 12.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
13. 13.🫗 How do we separate gravel from fine sand? (a) sieving (b) filtering (c) handpicking (d) winnowing
14. 14.🫗 Which of these is done by winnowing? (a) mud from water (b) sugar from sugar water (c) tea leaves from tea (d) chaff from wheat grain
15. 15.True or false: small stones from dal is done by evaporating. (a) True (b) False
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) turmeric powder (d) sand and pebbles
17. 17.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
18. 18.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
19. 19.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) chaff from wheat grain (c) salt from sea water (d) small stones from dal
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) muddy water (c) turmeric powder (d) yeast
21. 21.🔮 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
22. 22.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a battery cell (d) cotton or cloth
24. 24.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
25. 25.🫗 Which of these is done by sieving? (a) husk from rice grain (b) gravel from fine sand (c) chaff from wheat grain (d) bad grains from rice
26. 26.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
27. 27.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
28. 28.True or false: bad grains from rice is done by sieving. (a) True (b) False
29. 29.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
30. 30.🫗 Which of these is done by filtering? (a) salt from sea water (b) bad grains from rice (c) mud from water (d) husk from rice grain
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) a magnet (d) sand and pebbles
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) muddy water (c) a funnel (d) sand and pebbles
33. 33.True or false: mud from water is done by filtering. (a) False (b) True
34. 34.True or false: yeast is needed for the muddy water filter. (a) True (b) False
35. 35.⚖️ 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
36. 36.🔮 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 sugar (d) it turns to sand
37. 37.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same muddy water (c) the filter material (d) the same funnel
39. 39.🔍 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
40. 40.⚖️ 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

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