Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 201 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
2. 2.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
3. 3.⚖️ 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
4. 4.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
5. 5.🫗 How do we separate bran from wheat flour? (a) handpicking (b) sieving (c) winnowing (d) evaporating
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
7. 7.⚖️ 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) how clear the water is (c) the same muddy water
8. 8.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a magnet (d) sand and pebbles
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same funnel (c) the same muddy water (d) how clear the water is
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a funnel (d) yeast
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 measure it (b) we change it (c) we keep it the same
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) turmeric powder (d) a funnel
14. 14.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) tea leaves from tea (d) bran from wheat flour
15. 15.🫗 Which of these is done by winnowing? (a) small stones from dal (b) sugar from sugar water (c) bran from wheat flour (d) chaff from wheat grain
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) muddy water (c) a magnet (d) a battery cell
17. 17.🫗 How do we separate sugar from sugar water? (a) filtering (b) sieving (c) evaporating (d) handpicking
18. 18.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
19. 19.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is hot (d) clear water is salty
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
21. 21.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) sand and pebbles (d) a mirror
23. 23.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
24. 24.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
25. 25.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
27. 27.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
28. 28.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
29. 29.⚖️ 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 funnel (c) the filter material (d) the same muddy water
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) the filter material (c) how clear the water is
31. 31.True or false: mud from water is done by filtering. (a) True (b) False
32. 32.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
33. 33.True or false: small stones from dal is done by evaporating. (a) False (b) True
34. 34.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) husk from rice grain (c) chaff from wheat grain (d) gravel from fine sand
35. 35.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
36. 36.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) evaporating (d) winnowing
37. 37.🔍 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 turns to sand (d) it dissolves
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
39. 39.🫗 Which of these is done by evaporating? (a) small stones from dal (b) salt from sea water (c) bran from wheat flour (d) husk from rice grain
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a magnet (c) a funnel (d) cotton or cloth

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