Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 236 · 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.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
2. 2.⚖️ 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 measure it (c) we keep it the same
3. 3.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
4. 4.🫗 How do we separate bad grains from rice? (a) sieving (b) filtering (c) handpicking (d) winnowing
5. 5.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
6. 6.⚖️ 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 keep it the same (c) we measure it
7. 7.⚖️ 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
8. 8.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) chaff from wheat grain (c) small stones from dal (d) mud from water
9. 9.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) sand and pebbles (d) a magnet
12. 12.🫗 How do we separate tea leaves from tea? (a) sieving (b) handpicking (c) evaporating (d) filtering
13. 13.🫗 Which of these is done by handpicking? (a) mud from water (b) husk from rice grain (c) tea leaves from tea (d) bad grains from rice
14. 14.⚖️ 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 keep it the same (c) we measure it
15. 15.True or false: small stones from dal is done by handpicking. (a) False (b) True
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a balloon (c) muddy water (d) a funnel
17. 17.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) mud from water (c) sugar from sugar water (d) husk from rice grain
18. 18.True or false: gravel from fine sand is done by filtering. (a) True (b) False
19. 19.True or false: mud from water is done by filtering. (a) False (b) True
20. 20.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) yes, all of it (d) it turns to sand
21. 21.True or false: bad grains from rice is done by filtering. (a) False (b) True
22. 22.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
24. 24.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
25. 25.🫗 How do we separate small stones from dal? (a) filtering (b) handpicking (c) evaporating (d) sieving
26. 26.⚖️ 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) True (b) False
27. 27.⚖️ 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
28. 28.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
29. 29.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
30. 30.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
31. 31.True or false: salt from sea water is done by evaporating. (a) True (b) False
32. 32.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a magnet (d) sand and pebbles
34. 34.⚖️ 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 muddy water (c) the same funnel (d) the same glass
35. 35.🫗 Which of these is done by handpicking? (a) small stones from dal (b) husk from rice grain (c) salt from sea water (d) gravel from fine sand
36. 36.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
37. 37.🫗 How do we separate bran from wheat flour? (a) handpicking (b) evaporating (c) filtering (d) sieving
38. 38.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
39. 39.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) yeast (d) sand and pebbles

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