Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 142 · 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) sand and pebbles (b) a funnel (c) muddy water (d) a magnet
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) cotton or cloth (d) a battery cell
3. 3.⚖️ 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 filter material (c) the same glass (d) the same funnel
4. 4.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
5. 5.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
9. 9.True or false: yeast is needed for the muddy water filter. (a) True (b) False
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) a funnel (d) muddy water
11. 11.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) handpicking (d) winnowing
12. 12.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
13. 13.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) a magnet (d) cotton or cloth
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
18. 18.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) small stones from dal (c) husk from rice grain (d) salt from sea water
19. 19.🫗 Which of these is done by winnowing? (a) small stones from dal (b) mud from water (c) chaff from wheat grain (d) tea leaves from tea
20. 20.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
21. 21.True or false: bad grains from rice is done by filtering. (a) False (b) True
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) cotton or cloth (d) turmeric powder
24. 24.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a clean glass (d) yeast
26. 26.🫗 Which of these is done by evaporating? (a) small stones from dal (b) tea leaves from tea (c) bad grains from rice (d) sugar from sugar water
27. 27.⚖️ 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) True (b) False
28. 28.True or false: mud from water is done by handpicking. (a) False (b) True
29. 29.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the mud dissolves (d) the water evaporates
30. 30.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
31. 31.🫗 How do we separate tea leaves from tea? (a) evaporating (b) sieving (c) filtering (d) handpicking
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) cotton or cloth (d) sand and pebbles
33. 33.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
35. 35.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
36. 36.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
37. 37.⚖️ 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 amount poured (c) the same funnel (d) the same muddy water
38. 38.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) yes, all of it (d) it turns to sugar
39. 39.🔮 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
40. 40.True or false: husk from rice grain is done by filtering. (a) False (b) True

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