Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 219 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) cotton or cloth (c) a clean glass (d) a funnel
2. 2.⚖️ 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
3. 3.True or false: small stones from dal is done by winnowing. (a) False (b) True
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
5. 5.🫗 How do we separate tea leaves from tea? (a) evaporating (b) sieving (c) filtering (d) handpicking
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) a balloon (d) muddy water
7. 7.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always
8. 8.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) salt from sea water (c) gravel from fine sand (d) small stones from dal
9. 9.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
10. 10.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
11. 11.🫗 How do we separate bad grains from rice? (a) filtering (b) handpicking (c) sieving (d) winnowing
12. 12.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
13. 13.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same glass (b) the filter material (c) how clear the water is (d) the same muddy water
15. 15.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
16. 16.🛟 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
17. 17.⚖️ 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
18. 18.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
19. 19.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) sieving (d) filtering
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) yeast (d) a clean glass
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a magnet (d) sand and pebbles
22. 22.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
23. 23.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
24. 24.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) a magnet (d) a battery cell
25. 25.True or false: husk from rice grain is done by winnowing. (a) False (b) True
26. 26.🫗 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
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) a mirror (d) a clean glass
28. 28.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) salt from sea water (c) gravel from fine sand (d) chaff from wheat grain
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 muddy water (c) the filter material
30. 30.True or false: gravel from fine sand is done by sieving. (a) True (b) False
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.⚖️ 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
33. 33.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
34. 34.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
35. 35.True or false: husk from rice grain is done by handpicking. (a) False (b) True
36. 36.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) it turns to sand (d) no, salt passes through
37. 37.True or false: small stones from dal is done by filtering. (a) False (b) True
38. 38.⚖️ 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
39. 39.🫗 Which of these is done by sieving? (a) salt from sea water (b) bad grains from rice (c) tea leaves from tea (d) gravel from fine sand
40. 40.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True

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