Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 840 · 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) yeast (b) a battery cell (c) turmeric powder (d) sand and pebbles
2. 2.🫗 Which of these is done by sieving? (a) small stones from dal (b) bad grains from rice (c) sugar from sugar water (d) gravel from fine sand
3. 3.⚖️ 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 measure it (b) we change it (c) we keep it the same
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) cotton or cloth (c) a clean glass (d) a funnel
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🫗 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
7. 7.🫗 How do we separate bran from wheat flour? (a) winnowing (b) filtering (c) evaporating (d) sieving
8. 8.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) handpicking (d) filtering
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a magnet
11. 11.⚖️ 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) False (b) True
12. 12.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
13. 13.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
14. 14.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
15. 15.🫗 How do we separate husk from rice grain? (a) winnowing (b) filtering (c) handpicking (d) evaporating
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
17. 17.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
18. 18.⚖️ 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
19. 19.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) salt from sea water (c) tea leaves from tea (d) bran from wheat flour
20. 20.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
21. 21.True or false: small stones from dal is done by sieving. (a) True (b) False
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) muddy water (d) yeast
23. 23.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a battery cell (d) a funnel
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.True or false: salt from sea water is done by sieving. (a) True (b) False
27. 27.True or false: mud from water is done by filtering. (a) False (b) True
28. 28.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a mirror (c) yeast (d) a balloon
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) the same funnel (c) how clear the water is
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a balloon (d) muddy water
31. 31.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) filtering (d) handpicking
32. 32.🫗 How do we separate salt from sea water? (a) winnowing (b) evaporating (c) handpicking (d) filtering
33. 33.True or false: bran from wheat flour is done by filtering. (a) True (b) False
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the same funnel (c) how clear the water is (d) the same glass
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) sand and pebbles (d) turmeric powder
36. 36.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) husk from rice grain (c) small stones from dal (d) bran from wheat flour
37. 37.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
38. 38.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
39. 39.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
40. 40.⚖️ 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) True (b) False

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