Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 391 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
2. 2.⚖️ 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 change it (c) we measure it
3. 3.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) gravel from fine sand (c) small stones from dal (d) husk from rice grain
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
5. 5.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
6. 6.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
7. 7.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) muddy water (d) a clean glass
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) cotton or cloth (d) a battery cell
10. 10.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
11. 11.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
12. 12.⚖️ 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
13. 13.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
14. 14.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) evaporating (d) handpicking
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the amount poured
16. 16.⚖️ 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
17. 17.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
18. 18.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
19. 19.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
20. 20.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) yeast (c) a magnet (d) a mirror
21. 21.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) yeast (d) a clean glass
22. 22.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
23. 23.🫗 How do we separate small stones from dal? (a) evaporating (b) winnowing (c) handpicking (d) sieving
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a magnet (d) muddy water
26. 26.🫗 How do we separate bad grains from rice? (a) handpicking (b) filtering (c) evaporating (d) winnowing
27. 27.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
28. 28.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) gravel from fine sand (c) chaff from wheat grain (d) mud from water
29. 29.True or false: gravel from fine sand is done by sieving. (a) False (b) True
30. 30.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
31. 31.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) yeast (d) sand and pebbles
33. 33.⚖️ 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
34. 34.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
35. 35.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) husk from rice grain (c) bran from wheat flour (d) gravel from fine sand
36. 36.⚖️ 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) False (b) True
37. 37.⚖️ 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
38. 38.🫗 Which of these is done by sieving? (a) bad grains from rice (b) bran from wheat flour (c) salt from sea water (d) small stones from dal
39. 39.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
40. 40.True or false: bad grains from rice is done by handpicking. (a) True (b) False

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