Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 592 · 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.🫗 How do we separate bran from wheat flour? (a) winnowing (b) evaporating (c) sieving (d) handpicking
2. 2.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
4. 4.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
5. 5.True or false: salt from sea water is done by sieving. (a) False (b) True
6. 6.⚖️ 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
7. 7.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
8. 8.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, always (d) yes, if it is cold
9. 9.True or false: husk from rice grain is done by winnowing. (a) True (b) False
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) sugar from sugar water (c) bran from wheat flour (d) tea leaves from tea
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) clearer (d) hot
13. 13.🛟 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
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) the same funnel (b) the filter material (c) how clear the water is (d) the amount poured
15. 15.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) a balloon (d) a funnel
17. 17.True or false: sand and pebbles 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 “how clear the water is”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) muddy water (d) a battery cell
20. 20.True or false: chaff from wheat grain is done by sieving. (a) False (b) True
21. 21.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
22. 22.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
23. 23.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
24. 24.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
25. 25.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
26. 26.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
27. 27.⚖️ 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 funnel
28. 28.⚖️ 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
29. 29.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) handpicking (d) winnowing
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
31. 31.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) muddy water (d) sand and pebbles
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) cotton or cloth (d) a funnel
35. 35.True or false: husk from rice grain is done by evaporating. (a) False (b) True
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) a clean glass (d) a funnel
37. 37.⚖️ 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
38. 38.True or false: salt from sea water is done by evaporating. (a) True (b) False
39. 39.⚖️ 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 change it (c) we measure it
40. 40.True or false: bad grains from rice is done by winnowing. (a) True (b) False

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