Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 444 · 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: husk from rice grain is done by handpicking. (a) False (b) True
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a magnet (d) sand and pebbles
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) no, salt passes through (d) yes, all of it
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) cotton or cloth (d) sand and pebbles
5. 5.🧺 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) a funnel
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a funnel (d) turmeric powder
8. 8.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
9. 9.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) muddy water (d) a magnet
13. 13.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
14. 14.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
15. 15.True or false: small stones from dal is done by handpicking. (a) True (b) False
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
17. 17.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
18. 18.🫗 Which of these is done by sieving? (a) bad grains from rice (b) bran from wheat flour (c) mud from water (d) salt from sea water
19. 19.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a magnet (d) a clean glass
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same muddy water (c) the same glass (d) the filter material
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) both stay behind (d) tea stays behind
22. 22.🫗 How do we separate small stones from dal? (a) winnowing (b) handpicking (c) sieving (d) filtering
23. 23.🫗 Which of these is done by evaporating? (a) salt from sea water (b) husk from rice grain (c) bad grains from rice (d) gravel from fine sand
24. 24.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) tea leaves from tea (c) sugar from sugar water (d) small stones from dal
25. 25.⚖️ 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
26. 26.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
27. 27.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) salt from sea water (c) bran from wheat flour (d) mud from water
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) a mirror (d) a magnet
31. 31.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it sinks to the bottom (d) it turns to sand
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) a funnel (d) muddy water
33. 33.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
34. 34.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a mirror (c) sand and pebbles (d) muddy water
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.🫗 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
38. 38.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bad grains from rice (c) bran from wheat flour (d) salt from sea water

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