Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 778 · 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 needed for the muddy water filter? (a) a mirror (b) a magnet (c) turmeric powder (d) muddy water
2. 2.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
3. 3.⚖️ 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
4. 4.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) a funnel (d) cotton or cloth
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) cotton or cloth (d) a funnel
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a battery cell (d) yeast
9. 9.🔍 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
10. 10.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
11. 11.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) salty (d) hot
12. 12.🫗 How do we separate bran from wheat flour? (a) filtering (b) winnowing (c) sieving (d) evaporating
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
14. 14.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) winnowing (d) sieving
15. 15.True or false: tea leaves from tea is done by filtering. (a) True (b) False
16. 16.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) turmeric powder (d) yeast
18. 18.🫗 How do we separate tea leaves from tea? (a) handpicking (b) sieving (c) filtering (d) winnowing
19. 19.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
20. 20.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) husk from rice grain (c) small stones from dal (d) bran from wheat flour
21. 21.🛟 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
22. 22.🫗 How do we separate small stones from dal? (a) filtering (b) handpicking (c) sieving (d) winnowing
23. 23.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
24. 24.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
25. 25.⚖️ 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 glass (b) the same muddy water (c) how clear the water is (d) the filter material
26. 26.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) tea leaves from tea (c) gravel from fine sand (d) bad grains from rice
27. 27.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
28. 28.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same funnel (c) the same muddy water (d) how clear the water is
30. 30.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
31. 31.🫗 How do we separate bad grains from rice? (a) handpicking (b) filtering (c) winnowing (d) evaporating
32. 32.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
33. 33.🫗 How do we separate gravel from fine sand? (a) evaporating (b) winnowing (c) filtering (d) sieving
34. 34.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) sugar from sugar water (c) salt from sea water (d) mud from water
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
37. 37.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
38. 38.⚖️ 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 change it (c) we measure it
39. 39.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed

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