Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 783 · 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.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
2. 2.⚖️ 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 glass (c) the filter material (d) the same muddy water
3. 3.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) a funnel (d) yeast
5. 5.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
6. 6.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
8. 8.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
9. 9.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
10. 10.⚖️ 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 same funnel (c) how clear the water is (d) the amount poured
11. 11.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bran from wheat flour (c) small stones from dal (d) gravel from fine sand
12. 12.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
13. 13.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) a battery cell (d) a balloon
15. 15.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
16. 16.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
17. 17.True or false: small stones from dal is done by winnowing. (a) False (b) True
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) yeast (c) a mirror (d) turmeric powder
19. 19.⚖️ 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
20. 20.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
21. 21.True or false: mud from water is done by filtering. (a) True (b) False
22. 22.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) a battery cell
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 change it (b) we keep it the same (c) we measure it
25. 25.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
27. 27.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
28. 28.True or false: bad grains from rice is done by handpicking. (a) False (b) True
29. 29.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
30. 30.⚖️ 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
31. 31.True or false: husk from rice grain is done by winnowing. (a) True (b) False
32. 32.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) a clean glass (d) a magnet
35. 35.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
36. 36.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
37. 37.🫗 How do we separate tea leaves from tea? (a) winnowing (b) handpicking (c) sieving (d) filtering
38. 38.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
39. 39.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) sand and pebbles (d) muddy water

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