Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 75 · 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.True or false: mud from water is done by filtering. (a) False (b) True
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) turmeric powder (d) cotton or cloth
4. 4.🫗 Which of these is done by filtering? (a) salt from sea water (b) bad grains from rice (c) mud from water (d) chaff from wheat grain
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) sand and pebbles (d) turmeric powder
6. 6.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) a mirror (d) a balloon
7. 7.True or false: bad grains from rice is done by handpicking. (a) True (b) False
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the filter material (d) the same glass
9. 9.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) filtering (d) sieving
10. 10.⚖️ 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 funnel (b) the amount poured (c) the same glass (d) the filter material
11. 11.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a balloon (d) cotton or cloth
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a magnet (d) muddy water
14. 14.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) chaff from wheat grain (c) bran from wheat flour (d) salt from sea water
15. 15.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) cotton or cloth (d) sand and pebbles
18. 18.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) yeast (d) a funnel
20. 20.🫗 How do we separate sugar from sugar water? (a) sieving (b) evaporating (c) winnowing (d) handpicking
21. 21.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) nothing is needed (d) wipe hands on face
22. 22.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
23. 23.🫗 Which of these is done by sieving? (a) small stones from dal (b) gravel from fine sand (c) chaff from wheat grain (d) husk from rice grain
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a clean glass (c) a funnel (d) cotton or cloth
25. 25.⚖️ 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
26. 26.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bad grains from rice (c) mud from water (d) sugar from sugar water
27. 27.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
30. 30.⚖️ 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 measure it (c) we keep it the same
31. 31.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
32. 32.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) handpicking (c) filtering (d) evaporating
33. 33.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
34. 34.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
35. 35.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
36. 36.⚖️ 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 change it (b) we keep it the same (c) we measure it
37. 37.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
38. 38.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
39. 39.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
40. 40.True or false: gravel from fine sand is done by sieving. (a) False (b) True

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