Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 398 · 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: mud from water is done by handpicking. (a) True (b) False
2. 2.🫗 Which of these is done by filtering? (a) salt from sea water (b) mud from water (c) bad grains from rice (d) small stones from dal
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
4. 4.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
5. 5.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) cotton or cloth (d) a clean glass
7. 7.True or false: tea leaves from tea is done by filtering. (a) True (b) False
8. 8.🫗 How do we separate tea leaves from tea? (a) filtering (b) winnowing (c) handpicking (d) sieving
9. 9.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
10. 10.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
11. 11.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
12. 12.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
13. 13.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
14. 14.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
17. 17.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same funnel (c) the same muddy water (d) the amount poured
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) muddy water (d) a funnel
20. 20.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) turmeric powder (d) cotton or cloth
23. 23.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) sugar from sugar water (c) bad grains from rice (d) bran from wheat flour
24. 24.True or false: husk from rice grain is done by winnowing. (a) True (b) False
25. 25.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the water evaporates (d) the mud dissolves
26. 26.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
27. 27.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) bad grains from rice (c) chaff from wheat grain (d) husk from rice grain
28. 28.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
29. 29.⚖️ 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
30. 30.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) mud from water (c) salt from sea water (d) small stones from dal
31. 31.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a mirror (d) muddy water
33. 33.⚖️ 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
34. 34.⚖️ 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
35. 35.True or false: gravel from fine sand is done by sieving. (a) False (b) True
36. 36.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
37. 37.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
38. 38.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
39. 39.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
40. 40.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) sieving (d) evaporating

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