Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 876 · 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.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) gravel from fine sand (c) mud from water (d) chaff from wheat grain
2. 2.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
3. 3.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
4. 4.True or false: sugar from sugar water is done by sieving. (a) True (b) False
5. 5.⚖️ 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 measure it (b) we keep it the same (c) we change it
6. 6.True or false: chaff from wheat grain is done by evaporating. (a) False (b) True
7. 7.⚖️ 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 funnel (b) the same muddy water (c) the same glass (d) the filter material
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) a mirror (d) a battery cell
9. 9.🫗 How do we separate small stones from dal? (a) filtering (b) handpicking (c) winnowing (d) sieving
10. 10.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🛟 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
13. 13.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is salty (d) clear water is hot
14. 14.⚖️ 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
15. 15.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) cotton or cloth (d) a battery cell
18. 18.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
19. 19.🔮 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
20. 20.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) winnowing (c) sieving (d) filtering
21. 21.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
22. 22.🫗 Which of these is done by filtering? (a) husk from rice grain (b) salt from sea water (c) mud from water (d) gravel from fine sand
23. 23.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it floats on top (d) it turns to sand
24. 24.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
25. 25.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
26. 26.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
27. 27.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) no, salt passes through (d) it turns to sugar
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) cotton or cloth (d) muddy water
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) yeast (d) a mirror
30. 30.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bad grains from rice (c) gravel from fine sand (d) tea leaves from tea
31. 31.True or false: yeast is needed for the muddy water filter. (a) False (b) True
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) yeast (d) muddy water
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) a clean glass (d) a mirror
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) yeast (d) sand and pebbles
37. 37.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
38. 38.True or false: mud from water is done by filtering. (a) False (b) True
39. 39.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
40. 40.🫗 How do we separate bran from wheat flour? (a) filtering (b) handpicking (c) sieving (d) evaporating

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