Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 964 · 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 salt (b) nothing (c) the mud (d) the water
2. 2.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a clean glass (c) a funnel (d) muddy water
5. 5.⚖️ 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 glass
6. 6.⚖️ 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 change it (c) we measure it
7. 7.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
8. 8.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
9. 9.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
10. 10.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) no, salt passes through (d) yes, all of it
11. 11.True or false: mud from water is done by evaporating. (a) True (b) False
12. 12.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
13. 13.True or false: small stones from dal is done by filtering. (a) True (b) False
14. 14.True or false: salt from sea water is done by sieving. (a) True (b) False
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same funnel (c) the amount poured (d) the filter material
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) a balloon
17. 17.True or false: small stones from dal is done by handpicking. (a) True (b) False
18. 18.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) husk from rice grain (c) mud from water (d) bad grains from rice
19. 19.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) yeast
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) cotton or cloth (c) sand and pebbles (d) muddy water
24. 24.🫗 How do we separate sugar from sugar water? (a) winnowing (b) filtering (c) evaporating (d) handpicking
25. 25.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) salt from sea water (c) bad grains from rice (d) mud from water
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
27. 27.🫗 Which of these is done by handpicking? (a) small stones from dal (b) tea leaves from tea (c) gravel from fine sand (d) bran from wheat flour
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) turmeric powder (d) a mirror
29. 29.🫗 How do we separate small stones from dal? (a) sieving (b) winnowing (c) handpicking (d) evaporating
30. 30.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
31. 31.⚖️ 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 filter material (c) the same muddy water
32. 32.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
33. 33.🫗 How do we separate bran from wheat flour? (a) filtering (b) winnowing (c) evaporating (d) sieving
34. 34.🛟 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
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a funnel (d) turmeric powder
36. 36.⚖️ 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 measure it (c) we keep it the same
37. 37.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
38. 38.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True

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