Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 623 · 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.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) a balloon (d) yeast
2. 2.🫗 How do we separate bran from wheat flour? (a) handpicking (b) sieving (c) filtering (d) evaporating
3. 3.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: tea leaves from tea is done by filtering. (a) True (b) False
6. 6.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
8. 8.⚖️ 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
9. 9.🫗 Which of these is done by filtering? (a) husk from rice grain (b) mud from water (c) salt from sea water (d) bad grains from rice
10. 10.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
11. 11.True or false: bran from wheat flour is done by sieving. (a) False (b) True
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a mirror (c) cotton or cloth (d) a funnel
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) sand and pebbles (d) a balloon
14. 14.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
15. 15.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
17. 17.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) mud from water (c) salt from sea water (d) bran from wheat flour
18. 18.⚖️ 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) True (b) False
19. 19.🔮 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
20. 20.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
21. 21.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a magnet (d) a balloon
23. 23.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bran from wheat flour (c) sugar from sugar water (d) tea leaves from tea
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) a clean glass (d) a funnel
25. 25.True or false: small stones from dal is done by handpicking. (a) True (b) False
26. 26.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
27. 27.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) evaporating (d) winnowing
28. 28.🫗 Which of these is done by handpicking? (a) small stones from dal (b) bran from wheat flour (c) tea leaves from tea (d) husk from rice grain
29. 29.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
30. 30.⚖️ 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
31. 31.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) filtering (d) sieving
32. 32.🫗 How do we separate bad grains from rice? (a) handpicking (b) filtering (c) evaporating (d) sieving
33. 33.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
34. 34.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a mirror (c) muddy water (d) a balloon
35. 35.True or false: gravel from fine sand is done by sieving. (a) False (b) True
36. 36.True or false: gravel from fine sand is done by winnowing. (a) False (b) True
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 measure it (b) we keep it the same (c) we change it
38. 38.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
39. 39.⚖️ 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
40. 40.True or false: a funnel is needed for the muddy water filter. (a) False (b) True

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