Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 56 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) a clean glass (d) a funnel
2. 2.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
3. 3.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
4. 4.🫗 How do we separate salt from sea water? (a) handpicking (b) sieving (c) evaporating (d) winnowing
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a magnet (d) cotton or cloth
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) muddy water (d) a funnel
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) sand and pebbles (d) cotton or cloth
8. 8.⚖️ 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) how clear the water is (c) the same muddy water (d) the amount poured
9. 9.True or false: husk from rice grain is done by handpicking. (a) True (b) False
10. 10.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
11. 11.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) evaporating (d) winnowing
12. 12.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
13. 13.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
14. 14.⚖️ 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
15. 15.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) bad grains from rice (c) tea leaves from tea (d) salt from sea water
16. 16.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
17. 17.True or false: salt from sea water is done by evaporating. (a) False (b) True
18. 18.True or false: bad grains from rice is done by sieving. (a) True (b) False
19. 19.⚖️ 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
20. 20.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
21. 21.🫗 How do we separate bran from wheat flour? (a) winnowing (b) handpicking (c) evaporating (d) sieving
22. 22.🫗 How do we separate gravel from fine sand? (a) filtering (b) sieving (c) winnowing (d) handpicking
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) cotton or cloth (d) a battery cell
24. 24.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
25. 25.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sugar (d) it turns to sand
26. 26.⚖️ 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 change it (b) we keep it the same (c) we measure it
27. 27.🫗 How do we separate bad grains from rice? (a) handpicking (b) sieving (c) evaporating (d) winnowing
28. 28.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
29. 29.⚖️ 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
30. 30.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a magnet (c) a balloon (d) a mirror
32. 32.True or false: small stones from dal is done by filtering. (a) True (b) False
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
34. 34.🫗 Which of these is done by handpicking? (a) small stones from dal (b) mud from water (c) bran from wheat flour (d) tea leaves from tea
35. 35.⚖️ 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
36. 36.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) chaff from wheat grain (c) salt from sea water (d) tea leaves from tea
37. 37.⚖️ 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
38. 38.🫗 How do we separate small stones from dal? (a) filtering (b) winnowing (c) handpicking (d) sieving
39. 39.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) small stones from dal (c) husk from rice grain (d) tea leaves from tea
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) yeast (c) sand and pebbles (d) a funnel

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