Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 923 · 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.True or false: salt from sea water is done by winnowing. (a) False (b) True
2. 2.🫗 How do we separate salt from sea water? (a) sieving (b) evaporating (c) winnowing (d) handpicking
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) muddy water (d) sand and pebbles
4. 4.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
5. 5.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
6. 6.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) winnowing (d) evaporating
7. 7.⚖️ 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 keep it the same (b) we change it (c) we measure it
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a magnet (d) sand and pebbles
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) muddy water (c) a magnet (d) turmeric powder
11. 11.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
12. 12.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same funnel (c) the same muddy water (d) the filter material
14. 14.🫗 How do we separate bran from wheat flour? (a) sieving (b) filtering (c) handpicking (d) evaporating
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) yeast (d) sand and pebbles
16. 16.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the water evaporates (d) the filter traps mud
17. 17.True or false: bad grains from rice is done by handpicking. (a) False (b) True
18. 18.⚖️ 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 same funnel
19. 19.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier
20. 20.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the amount poured (c) how clear the water is (d) the same glass
22. 22.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
23. 23.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
24. 24.⚖️ 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 change it (c) we measure it
25. 25.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
26. 26.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a clean glass (d) a mirror
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a funnel (d) sand and pebbles
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a balloon
31. 31.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a mirror (d) sand and pebbles
32. 32.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
34. 34.🫗 How do we separate small stones from dal? (a) winnowing (b) filtering (c) evaporating (d) handpicking
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) cotton or cloth (c) sand and pebbles (d) a clean glass
36. 36.True or false: salt from sea water is done by evaporating. (a) False (b) True
37. 37.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) chaff from wheat grain (c) bad grains from rice (d) tea leaves from tea
38. 38.🫗 Which of these is done by sieving? (a) small stones from dal (b) salt from sea water (c) bran from wheat flour (d) chaff from wheat grain
39. 39.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
40. 40.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards

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