Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 307 · 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.⚖️ 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 glass (c) the filter material (d) the same funnel
2. 2.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
3. 3.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) a mirror (d) a funnel
4. 4.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
5. 5.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
6. 6.⚖️ 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
7. 7.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it floats on top (d) it turns to sand
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) cotton or cloth (d) a magnet
9. 9.🫗 Which of these is done by filtering? (a) salt from sea water (b) gravel from fine sand (c) tea leaves from tea (d) sugar from sugar water
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
11. 11.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a balloon (d) muddy water
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) turmeric powder (d) a funnel
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
14. 14.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a battery cell (d) a clean glass
16. 16.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
17. 17.⚖️ 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
18. 18.🫗 Which of these is done by sieving? (a) small stones from dal (b) bran from wheat flour (c) husk from rice grain (d) mud from water
19. 19.True or false: sugar from sugar water is done by sieving. (a) False (b) True
20. 20.⚖️ 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
21. 21.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) a clean glass (d) a funnel
23. 23.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) bran from wheat flour (c) small stones from dal (d) salt from sea water
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) a mirror (d) a battery cell
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
26. 26.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the filter adds soap (d) the water evaporates
27. 27.🔮 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 sugar (d) it turns to sand
28. 28.True or false: small stones from dal is done by sieving. (a) True (b) False
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same glass (c) the filter material
30. 30.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) yeast (c) muddy water (d) cotton or cloth
32. 32.⚖️ 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
33. 33.🫗 Which of these is done by filtering? (a) small stones from dal (b) salt from sea water (c) gravel from fine sand (d) mud from water
34. 34.True or false: salt from sea water is done by handpicking. (a) False (b) True
35. 35.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) sieving (d) handpicking
36. 36.⚖️ 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 keep it the same (c) we change it
37. 37.🫗 How do we separate bad grains from rice? (a) handpicking (b) evaporating (c) filtering (d) sieving
38. 38.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a funnel (d) a magnet

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