Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 229 · 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.⚖️ 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
2. 2.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) cotton or cloth (d) sand and pebbles
4. 4.True or false: small stones from dal is done by evaporating. (a) False (b) True
5. 5.⚖️ 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) the filter material (c) the same glass (d) how clear the water is
6. 6.⚖️ 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
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) bad grains from rice (c) mud from water (d) salt from sea water
10. 10.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
11. 11.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
12. 12.🧺 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 magnet
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a battery cell
14. 14.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
16. 16.True or false: salt from sea water is done by filtering. (a) True (b) False
17. 17.True or false: salt from sea water is done by sieving. (a) True (b) False
18. 18.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
19. 19.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wipe hands on face (d) wash hands afterwards
20. 20.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
21. 21.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
22. 22.True or false: bad grains from rice is done by evaporating. (a) False (b) True
23. 23.True or false: small stones from dal is done by handpicking. (a) True (b) False
24. 24.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
25. 25.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) a mirror
27. 27.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) sugar from sugar water (c) mud from water (d) small stones from dal
28. 28.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
29. 29.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
30. 30.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
31. 31.🔮 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) yes, all of it (d) no, salt passes through
32. 32.True or false: salt from sea water is done by winnowing. (a) True (b) False
33. 33.🫗 How do we separate sugar from sugar water? (a) winnowing (b) sieving (c) evaporating (d) handpicking
34. 34.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
35. 35.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bad grains from rice (c) tea leaves from tea (d) chaff from wheat grain
36. 36.True or false: husk from rice grain is done by winnowing. (a) True (b) False
37. 37.🫗 How do we separate husk from rice grain? (a) evaporating (b) filtering (c) winnowing (d) sieving
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) muddy water (c) sand and pebbles (d) a clean glass
39. 39.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
40. 40.🫗 How do we separate salt from sea water? (a) winnowing (b) handpicking (c) evaporating (d) filtering

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