Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 223 · 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.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) a funnel (d) sand and pebbles
3. 3.True or false: small stones from dal is done by handpicking. (a) True (b) False
4. 4.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) bran from wheat flour (c) husk from rice grain (d) sugar from sugar water
5. 5.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) clearer (d) salty
7. 7.True or false: husk from rice grain is done by winnowing. (a) True (b) False
8. 8.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a balloon (c) turmeric powder (d) a battery cell
10. 10.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
11. 11.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) sieving (d) handpicking
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) a clean glass (d) cotton or cloth
14. 14.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) handpicking (d) sieving
15. 15.True or false: yeast is needed for the muddy water filter. (a) True (b) False
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
17. 17.🫗 How do we separate mud from water? (a) evaporating (b) filtering (c) sieving (d) winnowing
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
19. 19.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
20. 20.⚖️ 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) True (b) False
21. 21.⚖️ 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 measure it (c) we change it
22. 22.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
23. 23.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, always (d) yes, if it is clear
24. 24.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
25. 25.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) winnowing (d) sieving
26. 26.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) mud from water (c) sugar from sugar water (d) chaff from wheat grain
27. 27.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) winnowing (d) evaporating
28. 28.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) cotton or cloth (c) a funnel (d) a clean glass
30. 30.🫗 Which of these is done by winnowing? (a) salt from sea water (b) gravel from fine sand (c) husk from rice grain (d) bad grains from rice
31. 31.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
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.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
34. 34.🫗 How do we separate husk from rice grain? (a) handpicking (b) sieving (c) filtering (d) winnowing
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) yeast
36. 36.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the filter adds soap (d) the mud dissolves
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the amount poured (d) the same glass
38. 38.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
39. 39.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
40. 40.True or false: bran from wheat flour is done by filtering. (a) False (b) True

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