Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 113 · 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.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) handpicking (d) winnowing
2. 2.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
3. 3.🫗 How do we separate husk from rice grain? (a) evaporating (b) sieving (c) filtering (d) winnowing
4. 4.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) cotton or cloth (d) yeast
6. 6.⚖️ 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 change it (c) we keep it the same
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) sand and pebbles (d) a clean glass
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a balloon (d) a clean glass
9. 9.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) evaporating (d) filtering
10. 10.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
11. 11.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
12. 12.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) yeast (d) cotton or cloth
14. 14.🫗 How do we separate mud from water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
15. 15.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
16. 16.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) a clean glass (d) muddy water
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) a magnet (d) yeast
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) yeast (d) a funnel
23. 23.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
25. 25.🫗 Which of these is done by filtering? (a) bad grains from rice (b) tea leaves from tea (c) small stones from dal (d) husk from rice grain
26. 26.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
27. 27.🫗 Which of these is done by handpicking? (a) mud from water (b) bran from wheat flour (c) chaff from wheat grain (d) small stones from dal
28. 28.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
29. 29.True or false: bad grains from rice is done by handpicking. (a) False (b) True
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a balloon (c) muddy water (d) a clean glass
31. 31.🔮 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
32. 32.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a clean glass (d) a balloon
34. 34.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) a magnet (d) muddy water
36. 36.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
37. 37.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
38. 38.⚖️ 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) False (b) True
39. 39.⚖️ 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 filter material (c) the same funnel
40. 40.True or false: husk from rice grain is done by sieving. (a) False (b) True

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