Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 99 · 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 filtering. (a) True (b) False
2. 2.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
3. 3.⚖️ 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 muddy water (b) how clear the water is (c) the amount poured (d) the filter material
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a clean glass (d) turmeric powder
5. 5.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
6. 6.⚖️ 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 change it (b) we measure it (c) we keep it the same
7. 7.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.⚖️ 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 muddy water
10. 10.⚖️ 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) False (b) True
11. 11.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) winnowing (d) evaporating
12. 12.⚖️ 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
13. 13.🫗 How do we separate bad grains from rice? (a) handpicking (b) filtering (c) sieving (d) winnowing
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same glass (c) the same funnel (d) how clear the water is
15. 15.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
16. 16.🔮 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
17. 17.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) cotton or cloth (d) muddy water
19. 19.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
20. 20.True or false: yeast is needed for the muddy water filter. (a) True (b) False
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) a balloon (d) muddy water
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a mirror (d) a clean glass
24. 24.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
25. 25.⚖️ 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) False (b) True
26. 26.True or false: small stones from dal is done by evaporating. (a) False (b) True
27. 27.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) a magnet (d) cotton or cloth
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) turmeric powder (d) muddy water
29. 29.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) small stones from dal (c) gravel from fine sand (d) husk from rice grain
30. 30.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
31. 31.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
32. 32.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
33. 33.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) small stones from dal (c) tea leaves from tea (d) sugar from sugar water
34. 34.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
36. 36.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
37. 37.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
38. 38.🫗 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
39. 39.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) tea stays behind (d) leaves stay behind
40. 40.True or false: yeast is not needed for the muddy water filter. (a) True (b) False

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