Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 557 · 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? True or false: the same muddy water is the one thing we change. (a) True (b) False
2. 2.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a magnet (d) yeast
3. 3.🔮 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
4. 4.🫗 How do we separate mud from water? (a) winnowing (b) sieving (c) filtering (d) handpicking
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
6. 6.⚖️ 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
7. 7.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
8. 8.⚖️ 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
9. 9.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
10. 10.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
11. 11.⚖️ 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
12. 12.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) muddy water (c) a balloon (d) turmeric powder
14. 14.⚖️ 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 amount poured (c) the same glass (d) the filter material
15. 15.🫗 How do we separate tea leaves from tea? (a) evaporating (b) sieving (c) filtering (d) winnowing
16. 16.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) yes, all of it (d) it turns to sugar
17. 17.True or false: yeast is needed for the muddy water filter. (a) False (b) True
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) turmeric powder (d) cotton or cloth
20. 20.True or false: small stones from dal is done by handpicking. (a) False (b) True
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the amount poured (d) the filter material
22. 22.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
23. 23.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, if it is cold (d) yes, always
24. 24.⚖️ 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
25. 25.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
26. 26.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
27. 27.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
28. 28.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
29. 29.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
30. 30.True or false: salt from sea water is done by sieving. (a) False (b) True
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a clean glass (d) a battery cell
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) a funnel (d) a clean glass
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) yeast (d) cotton or cloth
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a funnel (d) a battery cell
35. 35.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) turmeric powder (d) a funnel
37. 37.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
38. 38.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
39. 39.True or false: bad grains from rice is done by handpicking. (a) False (b) True
40. 40.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed

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