Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 584 · 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.⚖️ 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 keep it the same (c) we change it
2. 2.🫗 How do we separate small stones from dal? (a) winnowing (b) evaporating (c) filtering (d) handpicking
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) a funnel (d) cotton or cloth
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a battery cell (c) turmeric powder (d) a magnet
6. 6.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) mud from water (c) salt from sea water (d) bad grains from rice
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) turmeric powder (d) a clean glass
8. 8.🫗 Which of these is done by winnowing? (a) small stones from dal (b) sugar from sugar water (c) gravel from fine sand (d) chaff from wheat grain
9. 9.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a balloon (d) sand and pebbles
11. 11.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
12. 12.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
13. 13.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
14. 14.🛟 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
15. 15.⚖️ 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 muddy water (b) the same funnel (c) the filter material (d) how clear the water is
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) sand and pebbles (d) muddy water
17. 17.True or false: salt from sea water is done by sieving. (a) True (b) False
18. 18.🫗 How do we separate husk from rice grain? (a) winnowing (b) sieving (c) handpicking (d) filtering
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a clean glass (c) muddy water (d) cotton or cloth
20. 20.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) muddier (d) clearer
21. 21.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the same glass (c) how clear the water is (d) the same muddy water
23. 23.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) handpicking (d) filtering
24. 24.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) the salt (d) nothing
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) a balloon
26. 26.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) salt from sea water (c) husk from rice grain (d) bran from wheat flour
27. 27.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
28. 28.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) both stay behind (d) leaves pass through
29. 29.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
30. 30.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
31. 31.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
32. 32.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
33. 33.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
34. 34.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) sieving (d) handpicking
35. 35.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
37. 37.True or false: husk from rice grain is done by winnowing. (a) True (b) False
38. 38.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) husk from rice grain (c) bad grains from rice (d) salt from sea water
39. 39.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) a magnet (d) turmeric powder
40. 40.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves

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