Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 316 · 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 what we measure? (a) how clear the water is (b) the filter material (c) the same glass (d) the amount poured
2. 2.⚖️ 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 same muddy water (c) the filter material (d) how clear the water is
3. 3.🫗 How do we separate tea leaves from tea? (a) handpicking (b) filtering (c) evaporating (d) sieving
4. 4.⚖️ 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 keep it the same (c) we measure it
5. 5.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
6. 6.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
8. 8.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) muddy water (c) turmeric powder (d) a magnet
9. 9.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
10. 10.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sugar (d) it turns to sand
11. 11.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) winnowing (d) sieving
12. 12.🫗 How do we separate mud from water? (a) sieving (b) winnowing (c) handpicking (d) filtering
13. 13.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, if it is cold (d) yes, always
14. 14.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the mud dissolves (d) the water evaporates
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) muddy water (d) sand and pebbles
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 keep it the same (b) we measure it (c) we change it
18. 18.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a funnel (d) a balloon
20. 20.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
21. 21.⚖️ 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 filter material (c) the same glass
22. 22.⚖️ 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) True (b) False
23. 23.True or false: mud from water is done by winnowing. (a) True (b) False
24. 24.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
25. 25.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) small stones from dal (c) bad grains from rice (d) husk from rice grain
26. 26.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
27. 27.True or false: tea leaves from tea is done by filtering. (a) False (b) True
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) sand and pebbles (d) a clean glass
29. 29.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
30. 30.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
31. 31.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
35. 35.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
36. 36.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) a balloon (d) sand and pebbles
37. 37.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) handpicking (c) filtering (d) sieving
38. 38.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
39. 39.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
40. 40.🫗 How do we separate bad grains from rice? (a) winnowing (b) evaporating (c) sieving (d) handpicking

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