Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 70 · 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.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
2. 2.True or false: bad grains from rice is done by evaporating. (a) True (b) False
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
4. 4.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) evaporating (d) sieving
5. 5.⚖️ 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) the same muddy water (d) the amount poured
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) muddy water (c) a funnel (d) a clean glass
7. 7.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
9. 9.True or false: bad grains from rice is done by handpicking. (a) False (b) True
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the amount poured (c) the same funnel (d) how clear the water is
11. 11.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
12. 12.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
15. 15.⚖️ 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 keep it the same (c) we change it
16. 16.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
17. 17.🫗 How do we separate husk from rice grain? (a) winnowing (b) sieving (c) evaporating (d) handpicking
18. 18.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) tea leaves from tea (c) husk from rice grain (d) salt from sea water
19. 19.True or false: yeast is needed for the muddy water filter. (a) False (b) True
20. 20.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
21. 21.🔮 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
22. 22.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a mirror (d) sand and pebbles
26. 26.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
27. 27.True or false: small stones from dal is done by evaporating. (a) False (b) True
28. 28.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) sugar from sugar water (c) bad grains from rice (d) small stones from dal
31. 31.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
32. 32.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a clean glass (d) a battery cell
34. 34.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) filtering (d) sieving
35. 35.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
36. 36.🫗 How do we separate mud from water? (a) evaporating (b) filtering (c) handpicking (d) winnowing
37. 37.⚖️ 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) False (b) True
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a battery cell (d) cotton or cloth
39. 39.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is clear (d) yes, if it is cold
40. 40.⚖️ 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

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