Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 596 · 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.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) filtering (d) winnowing
2. 2.🫗 Which of these is done by winnowing? (a) small stones from dal (b) husk from rice grain (c) gravel from fine sand (d) bad grains from rice
3. 3.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
4. 4.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) gravel from fine sand (c) small stones from dal (d) bran from wheat flour
5. 5.🫗 How do we separate small stones from dal? (a) sieving (b) filtering (c) evaporating (d) handpicking
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
7. 7.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) muddy water (d) a battery cell
9. 9.⚖️ 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 filter material (c) the same glass
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) turmeric powder (d) cotton or cloth
11. 11.🫗 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
12. 12.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
13. 13.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) sugar from sugar water (c) bran from wheat flour (d) mud from water
14. 14.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) filtering (d) handpicking
15. 15.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (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 same glass (b) the same funnel (c) the amount poured (d) the filter material
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) muddy water (d) a clean glass
19. 19.⚖️ 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
20. 20.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) yeast (d) sand and pebbles
22. 22.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
23. 23.🔮 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
24. 24.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
25. 25.⚖️ 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) True (b) False
26. 26.⚖️ 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 same funnel (d) the filter material
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
28. 28.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
29. 29.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
30. 30.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
33. 33.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
34. 34.🫗 Which of these is done by filtering? (a) mud from water (b) small stones from dal (c) gravel from fine sand (d) bran from wheat flour
35. 35.⚖️ 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 keep it the same (b) we change it (c) we measure it
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a magnet (d) a funnel
37. 37.⚖️ 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
38. 38.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
39. 39.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) mud from water (c) chaff from wheat grain (d) salt from sea water
40. 40.True or false: salt from sea water is done by evaporating. (a) False (b) True

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