Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 630 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) a magnet (d) muddy water
2. 2.🫗 How do we separate bran from wheat flour? (a) evaporating (b) sieving (c) winnowing (d) handpicking
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) turmeric powder (d) cotton or cloth
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) a battery cell
5. 5.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
8. 8.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
9. 9.⚖️ 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
10. 10.⚖️ 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 filter material (c) the same glass (d) the same funnel
11. 11.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
12. 12.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) filtering (d) evaporating
13. 13.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) winnowing (d) sieving
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the filter material (c) the same funnel (d) the same muddy water
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
17. 17.True or false: husk from rice grain is done by winnowing. (a) True (b) False
18. 18.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) yeast (c) a magnet (d) a balloon
19. 19.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
20. 20.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is hot (d) clear water is salty
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a balloon
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
24. 24.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
25. 25.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) sieving (d) winnowing
26. 26.True or false: salt from sea water is done by evaporating. (a) True (b) False
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
29. 29.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) the salt (d) nothing
30. 30.⚖️ 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) how clear the water is (c) the filter material
31. 31.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
32. 32.🫗 How do we separate small stones from dal? (a) winnowing (b) handpicking (c) evaporating (d) sieving
33. 33.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ 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 measure it (c) we change it
35. 35.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
36. 36.True or false: gravel from fine sand is done by sieving. (a) False (b) True
37. 37.True or false: small stones from dal is done by handpicking. (a) True (b) False
38. 38.🫗 How do we separate sugar from sugar water? (a) sieving (b) filtering (c) winnowing (d) evaporating
39. 39.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
40. 40.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it floats on top (d) it turns to sand

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