Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 898 · 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 same funnel”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
3. 3.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
4. 4.⚖️ 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 funnel
5. 5.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
6. 6.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) yeast (d) sand and pebbles
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same muddy water (c) the same glass (d) the filter material
8. 8.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
9. 9.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) sieving (c) winnowing (d) evaporating
10. 10.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) handpicking (d) filtering
11. 11.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) small stones from dal (c) mud from water (d) bad grains from rice
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the amount poured (c) the same muddy water (d) the filter material
13. 13.🫗 How do we separate mud from water? (a) evaporating (b) handpicking (c) filtering (d) winnowing
14. 14.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
15. 15.True or false: tea leaves from tea is done by filtering. (a) True (b) False
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) muddy water (d) a mirror
18. 18.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
19. 19.True or false: salt from sea water is done by evaporating. (a) False (b) True
20. 20.True or false: husk from rice grain is done by winnowing. (a) True (b) False
21. 21.True or false: bran from wheat flour is done by sieving. (a) False (b) True
22. 22.⚖️ 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 measure it (c) we change it
23. 23.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
24. 24.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
25. 25.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
26. 26.⚖️ 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 change it (c) we measure it
27. 27.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
28. 28.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
29. 29.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
30. 30.🫗 Which of these is done by handpicking? (a) salt from sea water (b) mud from water (c) gravel from fine sand (d) bad grains from rice
31. 31.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) yes, if it is cold (d) no, germs may stay
32. 32.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) yeast (c) turmeric powder (d) a balloon
33. 33.🔮 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
34. 34.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) turmeric powder (d) sand and pebbles
36. 36.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
37. 37.⚖️ 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) False (b) True
38. 38.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
39. 39.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a mirror (d) a funnel

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