Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 320 · 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 filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
2. 2.🫗 How do we separate small stones from dal? (a) handpicking (b) filtering (c) winnowing (d) sieving
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
4. 4.True or false: tea leaves from tea is done by filtering. (a) False (b) True
5. 5.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) filtering (d) sieving
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a funnel (d) turmeric powder
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
8. 8.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
9. 9.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a magnet (d) cotton or cloth
10. 10.🛟 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
11. 11.⚖️ 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) how clear the water is (c) the amount poured (d) the same funnel
12. 12.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
13. 13.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
14. 14.⚖️ 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
15. 15.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a mirror (c) muddy water (d) cotton or cloth
18. 18.🫗 Which of these is done by evaporating? (a) salt from sea water (b) mud from water (c) small stones from dal (d) husk from rice grain
19. 19.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
21. 21.🫗 How do we separate bran from wheat flour? (a) handpicking (b) evaporating (c) filtering (d) sieving
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a balloon (d) muddy water
23. 23.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the water evaporates (d) the filter adds soap
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) muddy water (c) sand and pebbles (d) cotton or cloth
27. 27.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) turmeric powder (d) muddy water
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
30. 30.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
31. 31.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) filtering (d) evaporating
32. 32.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same muddy water (c) how clear the water is (d) the filter material
34. 34.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
35. 35.True or false: small stones from dal is done by handpicking. (a) True (b) False
36. 36.True or false: mud from water is done by filtering. (a) True (b) False
37. 37.⚖️ 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 change it (c) we keep it the same
38. 38.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
39. 39.True or false: bad grains from rice is done by handpicking. (a) False (b) True
40. 40.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed

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