Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 582 · 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? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
3. 3.True or false: gravel from fine sand is done by filtering. (a) True (b) False
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) cotton or cloth (d) a funnel
5. 5.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
6. 6.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
7. 7.⚖️ 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 same muddy water
8. 8.🛟 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
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a magnet (d) a clean glass
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a balloon (d) cotton or cloth
11. 11.🛟 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
12. 12.🫗 Which of these is done by winnowing? (a) small stones from dal (b) bad grains from rice (c) tea leaves from tea (d) chaff from wheat grain
13. 13.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
14. 14.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
15. 15.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
17. 17.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
18. 18.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
19. 19.🫗 How do we separate small stones from dal? (a) filtering (b) evaporating (c) handpicking (d) winnowing
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a magnet (d) muddy water
22. 22.🫗 How do we separate bad grains from rice? (a) evaporating (b) sieving (c) winnowing (d) handpicking
23. 23.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
24. 24.🫗 Which of these is done by winnowing? (a) small stones from dal (b) tea leaves from tea (c) salt from sea water (d) husk from rice grain
25. 25.True or false: mud from water is done by winnowing. (a) False (b) True
26. 26.⚖️ 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 keep it the same (b) we measure it (c) we change it
27. 27.🔍 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 dissolves (d) it sinks to the bottom
28. 28.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
29. 29.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) a funnel (d) a magnet
31. 31.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
32. 32.⚖️ 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 amount poured (c) how clear the water is
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.⚖️ 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) False (b) True
35. 35.🫗 How do we separate tea leaves from tea? (a) filtering (b) winnowing (c) sieving (d) evaporating
36. 36.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) bran from wheat flour (d) mud from water
37. 37.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) mud from water (c) sugar from sugar water (d) chaff from wheat grain
38. 38.⚖️ 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 keep it the same (c) we measure it
39. 39.⚖️ 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 keep it the same (c) we measure it
40. 40.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the salt (d) the water

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