Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 897 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same muddy water (c) how clear the water is (d) the amount poured
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
3. 3.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
5. 5.True or false: husk from rice grain is done by winnowing. (a) False (b) True
6. 6.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
7. 7.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
8. 8.True or false: bran from wheat flour is done by filtering. (a) False (b) True
9. 9.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
10. 10.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) tea leaves from tea (c) chaff from wheat grain (d) bran from wheat flour
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) turmeric powder
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a balloon (d) cotton or cloth
13. 13.🫗 How do we separate salt from sea water? (a) winnowing (b) filtering (c) handpicking (d) evaporating
14. 14.True or false: bad grains from rice is done by filtering. (a) False (b) True
15. 15.⚖️ 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) how clear the water is (c) the same muddy water
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) a funnel (d) a balloon
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a mirror
18. 18.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) yes, all of it (d) no, salt passes through
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) yeast (d) cotton or cloth
20. 20.True or false: small stones from dal is done by winnowing. (a) False (b) True
21. 21.🫗 How do we separate husk from rice grain? (a) evaporating (b) handpicking (c) winnowing (d) sieving
22. 22.🫗 How do we separate small stones from dal? (a) sieving (b) evaporating (c) handpicking (d) filtering
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a magnet (d) a clean glass
24. 24.True or false: gravel from fine sand is done by sieving. (a) True (b) False
25. 25.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
26. 26.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) cotton or cloth (d) a magnet
28. 28.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
29. 29.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) winnowing (d) sieving
30. 30.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.🫗 How do we separate bran from wheat flour? (a) sieving (b) filtering (c) handpicking (d) evaporating
33. 33.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a balloon (d) a magnet
34. 34.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
35. 35.⚖️ 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
36. 36.🛟 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
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same funnel (c) the filter material (d) how clear the water is
38. 38.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
39. 39.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
40. 40.True or false: sugar from sugar water is done by handpicking. (a) True (b) False

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