Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 118 · 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.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a funnel (d) a balloon
2. 2.⚖️ 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 muddy water (b) the filter material (c) the same glass (d) the same funnel
3. 3.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it sinks to the bottom (d) it turns to sand
4. 4.True or false: tea leaves from tea is done by filtering. (a) True (b) False
5. 5.🫗 How do we separate salt from sea water? (a) filtering (b) sieving (c) evaporating (d) winnowing
6. 6.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
7. 7.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
8. 8.True or false: chaff from wheat grain is done by handpicking. (a) True (b) False
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) a funnel (d) muddy water
10. 10.⚖️ 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 change it (b) we measure it (c) we keep it the same
11. 11.True or false: small stones from dal is done by handpicking. (a) False (b) True
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) clearer (d) salty
13. 13.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
14. 14.🫗 Which of these is done by filtering? (a) salt from sea water (b) gravel from fine sand (c) tea leaves from tea (d) husk from rice grain
15. 15.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
16. 16.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
17. 17.🫗 Which of these is done by sieving? (a) mud from water (b) bran from wheat flour (c) tea leaves from tea (d) salt from sea water
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the amount poured (c) the same glass (d) how clear the water is
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 muddy water
20. 20.🫗 How do we separate tea leaves from tea? (a) evaporating (b) handpicking (c) winnowing (d) filtering
21. 21.🫗 How do we separate mud from water? (a) sieving (b) winnowing (c) filtering (d) evaporating
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
23. 23.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
24. 24.🫗 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
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 change it (c) we keep it the same
26. 26.⚖️ 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
27. 27.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) yes, if it is clear (d) no, germs may stay
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) yeast (d) a clean glass
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) sand and pebbles (d) cotton or cloth
33. 33.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) gravel from fine sand (c) mud from water (d) salt from sea water
34. 34.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
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) how clear the water is (c) the same glass
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a battery cell (c) sand and pebbles (d) muddy water
37. 37.🫗 How do we separate small stones from dal? (a) sieving (b) handpicking (c) evaporating (d) winnowing
38. 38.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
39. 39.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
40. 40.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False

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