Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 766 · 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 bad grains from rice? (a) sieving (b) handpicking (c) winnowing (d) filtering
2. 2.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) evaporating (d) handpicking
3. 3.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) mud from water (c) salt from sea water (d) bad grains from rice
4. 4.True or false: gravel from fine sand is done by sieving. (a) False (b) True
5. 5.True or false: mud from water is done by filtering. (a) False (b) True
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
7. 7.⚖️ 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
8. 8.True or false: small stones from dal is done by handpicking. (a) True (b) False
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) a funnel (d) turmeric powder
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) sand and pebbles (d) cotton or cloth
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
13. 13.🫗 How do we separate tea leaves from tea? (a) evaporating (b) sieving (c) winnowing (d) filtering
14. 14.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
15. 15.⚖️ 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 amount poured (d) the same glass
16. 16.🫗 How do we separate bran from wheat flour? (a) winnowing (b) sieving (c) handpicking (d) filtering
17. 17.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) muddy water (d) a clean glass
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a funnel (d) a magnet
20. 20.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
21. 21.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
22. 22.True or false: husk from rice grain is done by winnowing. (a) True (b) False
23. 23.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
24. 24.True or false: small stones from dal is done by sieving. (a) False (b) True
25. 25.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
26. 26.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
27. 27.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
28. 28.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) yes, if it is clear (d) no, germs may stay
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
30. 30.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
31. 31.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
32. 32.🫗 Which of these is done by winnowing? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) gravel from fine sand
33. 33.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) husk from rice grain (c) small stones from dal (d) salt from sea water
34. 34.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
35. 35.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
36. 36.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
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) the same muddy water (c) how clear the water is
38. 38.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
39. 39.True or false: tea leaves from tea is done by filtering. (a) True (b) False
40. 40.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed

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