Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 209 · 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.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
2. 2.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
3. 3.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a mirror (d) cotton or cloth
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
9. 9.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) yes, always (d) no, germs may stay
10. 10.True or false: husk from rice grain is done by winnowing. (a) False (b) True
11. 11.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a magnet (d) a funnel
13. 13.🫗 Which of these is done by sieving? (a) husk from rice grain (b) chaff from wheat grain (c) bran from wheat flour (d) mud from water
14. 14.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
15. 15.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bran from wheat flour (c) bad grains from rice (d) tea leaves from tea
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
17. 17.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
18. 18.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
19. 19.True or false: tea leaves from tea is done by filtering. (a) True (b) False
20. 20.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) filtering (d) sieving
21. 21.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
22. 22.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a clean glass (d) a battery cell
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) muddy water (d) yeast
25. 25.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) gravel from fine sand (c) sugar from sugar water (d) mud from water
26. 26.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
27. 27.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
28. 28.🫗 How do we separate tea leaves from tea? (a) filtering (b) handpicking (c) winnowing (d) sieving
29. 29.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
32. 32.🫗 How do we separate gravel from fine sand? (a) winnowing (b) handpicking (c) sieving (d) evaporating
33. 33.⚖️ 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 amount poured (d) the filter material
34. 34.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) mud from water (c) small stones from dal (d) bran from wheat flour
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) sand and pebbles (d) a balloon
36. 36.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) tea leaves from tea (c) chaff from wheat grain (d) sugar from sugar water
37. 37.True or false: gravel from fine sand is done by filtering. (a) False (b) True
38. 38.🫗 How do we separate bad grains from rice? (a) handpicking (b) sieving (c) winnowing (d) filtering
39. 39.🫗 How do we separate small stones from dal? (a) winnowing (b) evaporating (c) handpicking (d) sieving
40. 40.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed

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