Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 662 · 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.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
2. 2.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) a funnel (d) a magnet
4. 4.⚖️ 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 muddy water (b) the same funnel (c) the filter material (d) the amount poured
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) cotton or cloth (d) muddy water
6. 6.True or false: yeast is needed for the muddy water filter. (a) False (b) True
7. 7.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a funnel (d) a battery cell
9. 9.True or false: husk from rice grain is done by winnowing. (a) True (b) False
10. 10.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) mud from water (c) bad grains from rice (d) salt from sea water
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) muddy water (d) yeast
12. 12.⚖️ 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
13. 13.⚖️ 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 muddy water (c) the filter material
14. 14.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) winnowing (d) sieving
15. 15.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always
16. 16.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) yes, all of it (d) it turns to sand
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
18. 18.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
19. 19.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
20. 20.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
21. 21.True or false: muddy water is 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 funnel (b) yeast (c) a clean glass (d) muddy water
23. 23.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
25. 25.True or false: salt from sea water is done by sieving. (a) True (b) False
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) the filter material (c) how clear the water is
27. 27.🫗 How do we separate husk from rice grain? (a) handpicking (b) evaporating (c) filtering (d) winnowing
28. 28.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
29. 29.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
30. 30.True or false: bran from wheat flour is done by sieving. (a) False (b) True
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a balloon (d) sand and pebbles
32. 32.True or false: husk from rice grain is done by sieving. (a) True (b) False
33. 33.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
34. 34.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
35. 35.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) bad grains from rice (c) tea leaves from tea (d) bran from wheat flour
36. 36.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) a clean glass (d) muddy water
38. 38.True or false: salt from sea water is done by handpicking. (a) False (b) True
39. 39.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) handpicking (d) sieving
40. 40.True or false: yeast is not needed for the muddy water filter. (a) True (b) False

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