Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 597 · 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) a mirror (c) sand and pebbles (d) muddy water
2. 2.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) a funnel (d) a magnet
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a battery cell (d) cotton or cloth
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a balloon (d) sand and pebbles
7. 7.⚖️ 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 muddy water (c) the amount poured (d) the filter material
8. 8.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
9. 9.🫗 How do we separate sugar from sugar water? (a) handpicking (b) filtering (c) evaporating (d) winnowing
10. 10.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
11. 11.⚖️ 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
12. 12.True or false: husk from rice grain is done by winnowing. (a) True (b) False
13. 13.True or false: small stones from dal is done by winnowing. (a) False (b) True
14. 14.True or false: yeast is needed for the muddy water filter. (a) True (b) False
15. 15.True or false: tea leaves from tea is done by filtering. (a) False (b) True
16. 16.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
17. 17.🛟 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
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
19. 19.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
20. 20.True or false: bad grains from rice is done by handpicking. (a) False (b) True
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a funnel (d) turmeric powder
22. 22.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
23. 23.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) chaff from wheat grain (c) small stones from dal (d) gravel from fine sand
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) a clean glass (d) cotton or cloth
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
27. 27.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) evaporating (d) filtering
28. 28.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
29. 29.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
30. 30.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) husk from rice grain (c) small stones from dal (d) gravel from fine sand
31. 31.⚖️ 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
32. 32.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
33. 33.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) cotton or cloth (d) muddy water
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
37. 37.🫗 How do we separate tea leaves from tea? (a) filtering (b) handpicking (c) evaporating (d) winnowing
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) sieving (d) winnowing

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