Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 842 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) a clean glass (d) cotton or cloth
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a magnet (c) a mirror (d) yeast
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
5. 5.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
6. 6.⚖️ 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
7. 7.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) winnowing (d) handpicking
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
10. 10.🫗 Which of these is done by sieving? (a) small stones from dal (b) bran from wheat flour (c) chaff from wheat grain (d) salt from sea water
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
13. 13.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
14. 14.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
15. 15.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
16. 16.⚖️ 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 keep it the same (c) we change it
17. 17.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
18. 18.True or false: yeast is needed for the muddy water filter. (a) False (b) True
19. 19.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) sand and pebbles (d) yeast
21. 21.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
22. 22.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
23. 23.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
25. 25.True or false: husk from rice grain is done by handpicking. (a) True (b) False
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a balloon (d) a clean glass
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
28. 28.⚖️ 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 amount poured
29. 29.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
30. 30.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
31. 31.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
32. 32.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) salt from sea water (c) sugar from sugar water (d) bad grains from rice
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a battery cell (d) cotton or cloth
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) cotton or cloth (d) turmeric powder
37. 37.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) filtering (d) evaporating
38. 38.⚖️ 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 change it (c) we keep it the same
39. 39.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) filtering (d) sieving
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) a balloon

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