Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 364 · 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.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
2. 2.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) small stones from dal (c) gravel from fine sand (d) mud from water
3. 3.⚖️ 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
4. 4.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
6. 6.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
7. 7.🫗 How do we separate small stones from dal? (a) sieving (b) evaporating (c) filtering (d) handpicking
8. 8.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bad grains from rice (c) gravel from fine sand (d) husk from rice grain
11. 11.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a battery cell (c) turmeric powder (d) a balloon
13. 13.⚖️ 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
14. 14.🫗 How do we separate chaff from wheat grain? (a) filtering (b) evaporating (c) winnowing (d) handpicking
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) the same funnel (c) how clear the water is
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
17. 17.🫗 Which of these is done by evaporating? (a) mud from water (b) bad grains from rice (c) sugar from sugar water (d) husk from rice grain
18. 18.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
19. 19.⚖️ 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
20. 20.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
21. 21.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
22. 22.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
23. 23.True or false: mud from water is done by filtering. (a) True (b) False
24. 24.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
25. 25.🔮 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) no, salt passes through (d) it turns to sugar
26. 26.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
27. 27.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) yes, if it is cold (d) no, germs may stay
28. 28.True or false: small stones from dal is done by sieving. (a) False (b) True
29. 29.True or false: bran from wheat flour is done by sieving. (a) True (b) False
30. 30.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) filtering (d) winnowing
31. 31.🫗 Which of these is done by filtering? (a) mud from water (b) gravel from fine sand (c) salt from sea water (d) bad grains from rice
32. 32.True or false: husk from rice grain is done by handpicking. (a) False (b) True
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) a balloon (d) muddy water
34. 34.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) sieving (d) evaporating
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a magnet
36. 36.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the water evaporates (d) the mud dissolves
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🫗 How do we separate tea leaves from tea? (a) filtering (b) evaporating (c) sieving (d) winnowing

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