Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 873 · 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: a funnel is not needed for the muddy water filter. (a) True (b) False
2. 2.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) a clean glass (d) cotton or cloth
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a magnet (d) sand and pebbles
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a clean glass (c) muddy water (d) cotton or cloth
8. 8.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
9. 9.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
10. 10.⚖️ 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) the filter material (c) the amount poured (d) how clear the water is
11. 11.True or false: bad grains from rice is done by handpicking. (a) False (b) True
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 change it (b) we measure it (c) we keep it the same
13. 13.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
14. 14.True or false: mud from water is done by handpicking. (a) True (b) False
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a magnet (d) muddy water
16. 16.🫗 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
17. 17.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) mud from water (c) bran from wheat flour (d) bad grains from rice
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
19. 19.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves stay behind (d) leaves pass through
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the same glass (d) the amount poured
22. 22.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
23. 23.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
25. 25.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) muddy water (c) yeast (d) a magnet
27. 27.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
28. 28.True or false: chaff from wheat grain is done by evaporating. (a) True (b) False
29. 29.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) mud from water (c) tea leaves from tea (d) small stones from dal
30. 30.True or false: small stones from dal is done by handpicking. (a) True (b) False
31. 31.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
32. 32.🧺 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 mirror
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) sand and pebbles (d) a magnet
34. 34.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
35. 35.True or false: bran from wheat flour is done by sieving. (a) True (b) False
36. 36.True or false: small stones from dal is done by winnowing. (a) False (b) True
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) muddy water (d) a funnel
38. 38.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) winnowing (d) filtering
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a battery cell (c) turmeric powder (d) a magnet
40. 40.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) handpicking (d) evaporating

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