Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 101 · 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: small stones from dal is done by evaporating. (a) False (b) True
2. 2.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
3. 3.🔮 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
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) a funnel (d) cotton or cloth
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
6. 6.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
7. 7.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
9. 9.True or false: bran from wheat flour is done by sieving. (a) False (b) True
10. 10.True or false: husk from rice grain is done by winnowing. (a) False (b) True
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a magnet (d) cotton or cloth
12. 12.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) sieving (d) filtering
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) turmeric powder
14. 14.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
15. 15.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) 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.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
18. 18.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) sugar from sugar water (c) bad grains from rice (d) small stones from dal
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
21. 21.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
22. 22.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
23. 23.⚖️ 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 amount poured (c) the filter material (d) the same muddy water
24. 24.🫗 How do we separate bad grains from rice? (a) filtering (b) sieving (c) handpicking (d) evaporating
25. 25.🫗 How do we separate salt from sea water? (a) filtering (b) sieving (c) handpicking (d) evaporating
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a mirror (d) cotton or cloth
27. 27.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a battery cell (d) a funnel
29. 29.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
30. 30.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
31. 31.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) a battery cell
34. 34.⚖️ 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) the same muddy water (c) how clear the water is
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) False (b) True
36. 36.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
37. 37.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) sand and pebbles (d) a battery cell
38. 38.🫗 How do we separate mud from water? (a) filtering (b) winnowing (c) handpicking (d) evaporating
39. 39.True or false: bad grains from rice is done by handpicking. (a) True (b) False
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) muddy water (d) a balloon

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