Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 350 · 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 not needed for the muddy water filter? (a) a funnel (b) a balloon (c) sand and pebbles (d) muddy water
2. 2.True or false: small stones from dal is done by evaporating. (a) False (b) True
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a mirror (d) cotton or cloth
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a battery cell (d) sand and pebbles
5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it sinks to the bottom (d) it dissolves
6. 6.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
7. 7.🫗 How do we separate gravel from fine sand? (a) evaporating (b) filtering (c) sieving (d) winnowing
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same funnel (c) the same muddy water (d) the amount poured
9. 9.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) bran from wheat flour (c) bad grains from rice (d) sugar from sugar water
10. 10.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
11. 11.True or false: yeast is needed for the muddy water filter. (a) True (b) False
12. 12.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
13. 13.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) filtering (d) sieving
14. 14.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) a mirror (d) a battery cell
15. 15.🫗 Which of these is done by handpicking? (a) mud from water (b) bad grains from rice (c) husk from rice grain (d) bran from wheat flour
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🫗 Which of these is done by filtering? (a) husk from rice grain (b) small stones from dal (c) salt from sea water (d) mud from water
18. 18.🫗 Which of these is done by winnowing? (a) mud from water (b) gravel from fine sand (c) bran from wheat flour (d) chaff from wheat grain
19. 19.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) evaporating (d) sieving
20. 20.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) muddier (d) hot
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a mirror (d) cotton or cloth
22. 22.True or false: salt from sea water is done by sieving. (a) True (b) False
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) turmeric powder (d) muddy water
24. 24.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) small stones from dal (c) bran from wheat flour (d) mud from water
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same glass (c) the filter material (d) the amount poured
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
27. 27.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
28. 28.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
29. 29.⚖️ 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
30. 30.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) a funnel (d) yeast
32. 32.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
33. 33.⚖️ 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 muddy water (c) the filter material
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a battery cell (d) sand and pebbles
35. 35.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
36. 36.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
37. 37.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
38. 38.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a balloon (d) sand and pebbles
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False

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