Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 941 · 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.🫗 How do we separate bran from wheat flour? (a) sieving (b) filtering (c) winnowing (d) evaporating
2. 2.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) a battery cell (d) muddy water
3. 3.⚖️ 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 measure it (c) we keep it the same
4. 4.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
5. 5.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) winnowing (d) evaporating
6. 6.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
7. 7.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
8. 8.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
9. 9.🔍 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
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) a funnel (d) cotton or cloth
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) muddy water (d) sand and pebbles
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) muddy water (d) cotton or cloth
13. 13.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) cotton or cloth (c) sand and pebbles (d) a clean glass
15. 15.🫗 Which of these is done by evaporating? (a) mud from water (b) small stones from dal (c) tea leaves from tea (d) sugar from sugar water
16. 16.True or false: small stones from dal is done by evaporating. (a) True (b) False
17. 17.🫗 How do we separate mud from water? (a) handpicking (b) winnowing (c) evaporating (d) filtering
18. 18.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a mirror (d) cotton or cloth
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) a clean glass (d) muddy water
21. 21.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
22. 22.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) sugar from sugar water (c) husk from rice grain (d) bad grains from rice
23. 23.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
24. 24.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
26. 26.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
27. 27.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
29. 29.⚖️ 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 measure it (c) we change it
30. 30.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
31. 31.🫗 Which of these is done by filtering? (a) mud from water (b) gravel from fine sand (c) salt from sea water (d) small stones from dal
32. 32.⚖️ 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) how clear the water is (d) the same funnel
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 funnel (c) the filter material
34. 34.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
35. 35.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
36. 36.True or false: mud from water is done by evaporating. (a) False (b) True
37. 37.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
38. 38.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it

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