Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 933 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
2. 2.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
4. 4.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
5. 5.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
6. 6.⚖️ 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 same funnel (c) the filter material
7. 7.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a mirror (d) cotton or cloth
9. 9.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) small stones from dal (c) mud from water (d) sugar from sugar water
10. 10.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) nothing is needed (d) wipe hands on face
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) a battery cell (d) a magnet
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the same funnel (d) the amount poured
13. 13.True or false: husk from rice grain is done by evaporating. (a) True (b) False
14. 14.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) yeast (c) a balloon (d) a battery cell
15. 15.⚖️ 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
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
17. 17.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) a battery cell (d) a balloon
18. 18.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) evaporating (d) filtering
19. 19.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
20. 20.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
21. 21.⚖️ 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 muddy water (c) the amount poured (d) how clear the water is
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a battery cell (c) muddy water (d) sand and pebbles
23. 23.🫗 How do we separate mud from water? (a) evaporating (b) filtering (c) winnowing (d) sieving
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) turmeric powder (d) sand and pebbles
25. 25.🧺 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 balloon (d) muddy water
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) muddy water (d) a clean glass
27. 27.True or false: bad grains from rice is done by winnowing. (a) True (b) False
28. 28.True or false: sugar from sugar water is done by filtering. (a) False (b) True
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
30. 30.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) muddy water (d) yeast
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) a magnet (d) sand and pebbles
33. 33.True or false: bad grains from rice is done by handpicking. (a) False (b) True
34. 34.🫗 Which of these is done by sieving? (a) husk from rice grain (b) small stones from dal (c) sugar from sugar water (d) gravel from fine sand
35. 35.True or false: bad grains from rice is done by sieving. (a) True (b) False
36. 36.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
37. 37.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
38. 38.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bran from wheat flour (c) bad grains from rice (d) sugar from sugar water
39. 39.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) husk from rice grain (d) bran from wheat flour
40. 40.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) tea leaves from tea (c) sugar from sugar water (d) small stones from dal

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