Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 854 · 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.🔍 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
2. 2.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
3. 3.True or false: yeast is needed for the muddy water filter. (a) True (b) False
4. 4.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
5. 5.🫗 How do we separate mud from water? (a) filtering (b) evaporating (c) handpicking (d) winnowing
6. 6.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
7. 7.🔮 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
8. 8.True or false: salt from sea water is done by handpicking. (a) True (b) False
9. 9.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
10. 10.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) salt from sea water (c) small stones from dal (d) gravel from fine sand
11. 11.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) small stones from dal (c) husk from rice grain (d) mud from water
12. 12.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
13. 13.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) handpicking (d) filtering
14. 14.⚖️ 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) the amount poured (c) how clear the water is (d) the same funnel
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) sand and pebbles (c) muddy water (d) a clean glass
16. 16.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bran from wheat flour (c) small stones from dal (d) husk from rice grain
17. 17.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
18. 18.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
19. 19.🫗 How do we separate chaff from wheat grain? (a) filtering (b) winnowing (c) handpicking (d) evaporating
20. 20.🫗 Which of these is done by evaporating? (a) salt from sea water (b) small stones from dal (c) husk from rice grain (d) bran from wheat flour
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) cotton or cloth (d) turmeric powder
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a mirror (d) muddy water
24. 24.🫗 Which of these is done by sieving? (a) mud from water (b) chaff from wheat grain (c) bran from wheat flour (d) bad grains from rice
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) sand and pebbles (d) a magnet
26. 26.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) winnowing (d) handpicking
27. 27.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a balloon (d) a clean glass
29. 29.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) filtering (d) evaporating
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) a magnet (d) cotton or cloth
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a clean glass (d) turmeric powder
33. 33.⚖️ 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
34. 34.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
35. 35.⚖️ 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 same muddy water (c) the same glass (d) the filter material
36. 36.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
38. 38.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
39. 39.True or false: bad grains from rice is done by filtering. (a) True (b) False
40. 40.⚖️ 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

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