Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 392 · 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.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) turmeric powder (d) muddy water
3. 3.🫗 How do we separate gravel from fine sand? (a) sieving (b) winnowing (c) evaporating (d) filtering
4. 4.⚖️ 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
5. 5.🫗 Which of these is done by evaporating? (a) salt from sea water (b) bran from wheat flour (c) husk from rice grain (d) gravel from fine sand
6. 6.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
7. 7.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
8. 8.🫗 How do we separate bad grains from rice? (a) winnowing (b) evaporating (c) sieving (d) handpicking
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
10. 10.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
11. 11.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wipe hands on face (d) wash hands afterwards
12. 12.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
13. 13.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
14. 14.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
15. 15.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
16. 16.True or false: husk from rice grain is done by handpicking. (a) True (b) False
17. 17.⚖️ 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 measure it (c) we change it
18. 18.True or false: mud from water is done by filtering. (a) False (b) True
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the same muddy water (c) the same funnel (d) how clear the water is
20. 20.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sugar (d) it turns to sand
21. 21.🫗 How do we separate small stones from dal? (a) filtering (b) winnowing (c) evaporating (d) handpicking
22. 22.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) a clean glass (d) muddy water
24. 24.🧺 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) a clean glass
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) muddy water (c) a battery cell (d) a balloon
26. 26.True or false: husk from rice grain is done by sieving. (a) False (b) True
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) turmeric powder (d) a clean glass
29. 29.⚖️ 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
30. 30.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
31. 31.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
32. 32.⚖️ 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 amount poured
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) cotton or cloth (c) muddy water (d) sand and pebbles
34. 34.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
35. 35.True or false: bad grains from rice is done by filtering. (a) True (b) False
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) cotton or cloth (d) sand and pebbles
37. 37.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a funnel (c) turmeric powder (d) a magnet
38. 38.⚖️ 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
39. 39.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) sieving (d) evaporating
40. 40.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot

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