Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 195 · 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 a battery cell for the muddy water filter? (a) not needed (b) needed
2. 2.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
3. 3.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
4. 4.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
5. 5.⚖️ 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
6. 6.🧺 Do we need a clean glass 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 amount poured (b) the same muddy water (c) the same funnel (d) the filter material
8. 8.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it turns to sand (d) it floats on top
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) muddy water (d) a mirror
10. 10.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) yeast (d) cotton or cloth
12. 12.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
13. 13.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
14. 14.True or false: bran from wheat flour is done by sieving. (a) False (b) True
15. 15.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
16. 16.True or false: yeast is needed for the muddy water filter. (a) False (b) True
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a funnel (d) a battery cell
18. 18.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
19. 19.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) husk from rice grain (c) gravel from fine sand (d) salt from sea water
20. 20.⚖️ 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 amount poured (d) the same funnel
21. 21.🔮 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) it turns to sand (d) yes, all of it
22. 22.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet
23. 23.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) tea leaves from tea (c) salt from sea water (d) bad grains from rice
24. 24.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a clean glass (c) a funnel (d) cotton or cloth
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) muddy water (c) a magnet (d) a balloon
28. 28.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) evaporating (c) filtering (d) winnowing
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) muddier (d) hot
31. 31.True or false: small stones from dal is done by handpicking. (a) True (b) False
32. 32.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a battery cell (d) cotton or cloth
33. 33.⚖️ 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) True (b) False
34. 34.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
35. 35.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
36. 36.🫗 How do we separate sugar from sugar water? (a) winnowing (b) filtering (c) evaporating (d) sieving
37. 37.⚖️ 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) the same glass (c) how clear the water is
38. 38.⚖️ 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
39. 39.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a funnel (c) a clean glass (d) cotton or cloth

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