Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 445 · 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 mud from water? (a) evaporating (b) handpicking (c) filtering (d) winnowing
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a battery cell (d) a funnel
3. 3.🫗 How do we separate small stones from dal? (a) handpicking (b) filtering (c) winnowing (d) sieving
4. 4.⚖️ 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 keep it the same (c) we measure it
5. 5.⚖️ 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
6. 6.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
7. 7.⚖️ 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 amount poured (c) how clear the water is (d) the filter material
8. 8.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
9. 9.⚖️ 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
10. 10.True or false: bran from wheat flour is done by sieving. (a) False (b) True
11. 11.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
12. 12.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
13. 13.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
15. 15.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.⚖️ 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) False (b) True
18. 18.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
19. 19.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
20. 20.⚖️ 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
21. 21.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) mud from water (c) chaff from wheat grain (d) bran from wheat flour
22. 22.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) chaff from wheat grain (c) tea leaves from tea (d) bad grains from rice
23. 23.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) yeast (d) a funnel
25. 25.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
26. 26.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
27. 27.⚖️ 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
28. 28.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a clean glass (d) yeast
30. 30.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
31. 31.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
32. 32.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) muddy water (d) a clean glass
35. 35.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a mirror (d) a clean glass
37. 37.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
38. 38.🫗 How do we separate salt from sea water? (a) handpicking (b) evaporating (c) winnowing (d) sieving
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same glass (c) the same muddy water (d) the filter material
40. 40.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear

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