Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 747 · 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 tea leaves from tea? (a) sieving (b) filtering (c) handpicking (d) winnowing
2. 2.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
4. 4.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
5. 5.⚖️ 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
6. 6.⚖️ 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
7. 7.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) mud from water (c) bran from wheat flour (d) sugar from sugar water
8. 8.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
9. 9.True or false: husk from rice grain is done by winnowing. (a) True (b) False
10. 10.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the water evaporates (d) the filter adds soap
11. 11.🫗 How do we separate bran from wheat flour? (a) handpicking (b) sieving (c) winnowing (d) evaporating
12. 12.🔮 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
13. 13.🫗 How do we separate bad grains from rice? (a) winnowing (b) evaporating (c) filtering (d) handpicking
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
15. 15.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) a battery cell (d) a magnet
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
19. 19.⚖️ 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 glass (b) the same muddy water (c) the filter material (d) how clear the water is
20. 20.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) nothing (d) the salt
21. 21.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
22. 22.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) mud from water (c) small stones from dal (d) husk from rice grain
23. 23.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
24. 24.🫗 Which of these is done by evaporating? (a) mud from water (b) tea leaves from tea (c) salt from sea water (d) bad grains from rice
25. 25.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
26. 26.⚖️ 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 change it (c) we keep it the same
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) sand and pebbles (d) a mirror
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.🫗 Which of these is done by sieving? (a) salt from sea water (b) bad grains from rice (c) gravel from fine sand (d) husk from rice grain
33. 33.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
34. 34.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a battery cell (c) yeast (d) a mirror
35. 35.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
36. 36.True or false: small stones from dal is done by sieving. (a) False (b) True
37. 37.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
38. 38.🫗 How do we separate gravel from fine sand? (a) winnowing (b) handpicking (c) filtering (d) sieving
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) muddy water (d) a magnet
40. 40.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through

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