Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 856 · 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.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) a mirror (d) a magnet
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) it turns to sugar (d) yes, all of it
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the amount poured (c) the filter material
4. 4.True or false: small stones from dal is done by filtering. (a) True (b) False
5. 5.🫗 How do we separate salt from sea water? (a) sieving (b) handpicking (c) evaporating (d) winnowing
6. 6.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
7. 7.🫗 How do we separate sugar from sugar water? (a) filtering (b) sieving (c) winnowing (d) evaporating
8. 8.🔍 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 floats on top (d) it dissolves
9. 9.🫗 Which of these is done by handpicking? (a) small stones from dal (b) bran from wheat flour (c) chaff from wheat grain (d) mud from water
10. 10.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
11. 11.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) husk from rice grain (c) tea leaves from tea (d) sugar from sugar water
12. 12.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a clean glass (d) a battery cell
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) yeast (d) a funnel
14. 14.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) tea leaves from tea (c) small stones from dal (d) bad grains from rice
15. 15.🔮 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
16. 16.True or false: bad grains from rice is done by handpicking. (a) True (b) False
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) how clear the water is (c) the same muddy water (d) the filter material
18. 18.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
19. 19.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) salt from sea water (c) bran from wheat flour (d) chaff from wheat grain
20. 20.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) bad grains from rice (c) tea leaves from tea (d) gravel from fine sand
21. 21.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) muddy water (d) a clean glass
23. 23.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) winnowing (d) filtering
24. 24.⚖️ 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) how clear the water is (c) the filter material (d) the same muddy water
25. 25.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) mud from water (c) salt from sea water (d) chaff from wheat grain
26. 26.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) sand and pebbles (d) muddy water
28. 28.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
29. 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
30. 30.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
31. 31.True or false: bran from wheat flour is done by sieving. (a) False (b) True
32. 32.🫗 Which of these is done by sieving? (a) salt from sea water (b) sugar from sugar water (c) bran from wheat flour (d) mud from water
33. 33.⚖️ 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 change it (c) we measure it
34. 34.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a funnel (d) a balloon
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
39. 39.🔮 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
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a magnet (c) a funnel (d) sand and pebbles

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