Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 166 · 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 balloon is needed for the muddy water filter. (a) True (b) False
2. 2.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
3. 3.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
5. 5.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
7. 7.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
8. 8.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) small stones from dal (c) bad grains from rice (d) salt from sea water
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
10. 10.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a funnel (d) a balloon
11. 11.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
12. 12.🫗 How do we separate tea leaves from tea? (a) filtering (b) evaporating (c) winnowing (d) handpicking
13. 13.🫗 How do we separate salt from sea water? (a) winnowing (b) sieving (c) handpicking (d) evaporating
14. 14.True or false: tea leaves from tea is done by filtering. (a) False (b) True
15. 15.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) bad grains from rice (c) tea leaves from tea (d) chaff from wheat grain
16. 16.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
17. 17.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) muddy water (d) a clean glass
19. 19.🔮 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
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) the same muddy water (b) the same funnel (c) the same glass (d) the filter material
21. 21.⚖️ 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 keep it the same (c) we change it
22. 22.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
23. 23.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) sieving (c) handpicking (d) filtering
24. 24.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
25. 25.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
26. 26.⚖️ 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
27. 27.True or false: gravel from fine sand is done by sieving. (a) True (b) False
28. 28.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
29. 29.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
30. 30.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
31. 31.🫗 How do we separate husk from rice grain? (a) sieving (b) handpicking (c) winnowing (d) evaporating
32. 32.True or false: tea leaves from tea is done by evaporating. (a) False (b) True
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) turmeric powder (d) a magnet
34. 34.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
38. 38.🫗 How do we separate sugar from sugar water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
39. 39.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same muddy water (c) how clear the water is (d) the same funnel

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