Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 598 · 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? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) a funnel (d) cotton or cloth
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) False (b) True
4. 4.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
5. 5.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
6. 6.⚖️ 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 amount poured (d) the filter material
7. 7.True or false: salt from sea water is done by evaporating. (a) True (b) False
8. 8.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
9. 9.True or false: gravel from fine sand is done by sieving. (a) False (b) True
10. 10.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a battery cell (c) turmeric powder (d) yeast
11. 11.🫗 How do we separate salt from sea water? (a) evaporating (b) sieving (c) filtering (d) handpicking
12. 12.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
13. 13.🫗 Which of these is done by sieving? (a) bad grains from rice (b) chaff from wheat grain (c) salt from sea water (d) bran from wheat flour
14. 14.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) cotton or cloth (d) turmeric powder
16. 16.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
18. 18.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) it turns to sugar (d) yes, all of it
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) bad grains from rice (c) mud from water (d) tea leaves from tea
21. 21.⚖️ 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 amount poured
22. 22.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
23. 23.🫗 How do we separate sugar from sugar water? (a) filtering (b) handpicking (c) winnowing (d) evaporating
24. 24.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a balloon (d) a clean glass
25. 25.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) sugar from sugar water (c) bran from wheat flour (d) gravel from fine sand
26. 26.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
27. 27.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
28. 28.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) handpicking (d) winnowing
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) muddy water (d) a mirror
30. 30.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) evaporating (d) filtering
31. 31.True or false: a magnet is not 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 funnel”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) evaporating (d) filtering
34. 34.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
37. 37.⚖️ 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) the same funnel (c) the filter material (d) how clear the water is
38. 38.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) filtering (d) handpicking
39. 39.🫗 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
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True

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