Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 792 · 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.True or false: small stones from dal is done by winnowing. (a) False (b) True
2. 2.🫗 How do we separate mud from water? (a) sieving (b) winnowing (c) evaporating (d) filtering
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the filter material (c) how clear the water is (d) the same muddy water
4. 4.🫗 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
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a balloon (c) cotton or cloth (d) a clean glass
7. 7.🫗 How do we separate gravel from fine sand? (a) evaporating (b) handpicking (c) filtering (d) sieving
8. 8.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a battery cell (d) muddy water
11. 11.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
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 same funnel (b) the filter material (c) the amount poured (d) the same muddy water
13. 13.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
14. 14.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) husk from rice grain (c) bran from wheat flour (d) bad grains from rice
15. 15.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) cotton or cloth (d) a balloon
17. 17.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
20. 20.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) husk from rice grain (c) chaff from wheat grain (d) salt from sea water
21. 21.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) sugar from sugar water (c) bad grains from rice (d) husk from rice grain
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) cotton or cloth (d) a magnet
23. 23.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
24. 24.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
25. 25.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) sieving (d) winnowing
26. 26.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) turmeric powder (d) muddy water
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) sand and pebbles (d) yeast
29. 29.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
30. 30.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
33. 33.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.🫗 Which of these is done by handpicking? (a) mud from water (b) small stones from dal (c) salt from sea water (d) tea leaves from tea
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) cotton or cloth (c) muddy water (d) a clean glass
37. 37.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) muddy water (d) a balloon
38. 38.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) winnowing (d) sieving
39. 39.🫗 How do we separate tea leaves from tea? (a) sieving (b) handpicking (c) winnowing (d) filtering
40. 40.🫗 How do we separate salt from sea water? (a) sieving (b) handpicking (c) winnowing (d) evaporating

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