Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 617 · 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 sieving. (a) False (b) True
2. 2.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
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 muddy water (b) the amount poured (c) the same funnel (d) how clear the water is
4. 4.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
5. 5.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
6. 6.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) yes, if it is clear (d) no, germs may stay
7. 7.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
8. 8.⚖️ 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
9. 9.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
10. 10.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
11. 11.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) bad grains from rice (c) small stones from dal (d) chaff from wheat grain
12. 12.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the mud dissolves (d) the water evaporates
13. 13.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
14. 14.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
16. 16.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
17. 17.⚖️ 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
18. 18.True or false: gravel from fine sand is done by evaporating. (a) True (b) False
19. 19.True or false: small stones from dal is done by handpicking. (a) True (b) False
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) cotton or cloth (d) a magnet
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) a clean glass (d) cotton or cloth
22. 22.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) sugar from sugar water (c) tea leaves from tea (d) bran from wheat flour
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) a clean glass (d) a funnel
24. 24.⚖️ 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) how clear the water is (c) the same glass (d) the filter material
25. 25.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a funnel (d) a magnet
27. 27.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) tea leaves from tea (c) bran from wheat flour (d) sugar from sugar water
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a mirror (d) muddy water
29. 29.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
30. 30.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) sand and pebbles (d) a magnet
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 measure it (c) we keep it the same
32. 32.True or false: husk from rice grain is done by sieving. (a) False (b) True
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 funnel (c) the filter material
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
35. 35.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
37. 37.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) cotton or cloth (d) a battery cell
39. 39.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
40. 40.🫗 Which of these is done by sieving? (a) husk from rice grain (b) mud from water (c) sugar from sugar water (d) bran from wheat flour

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