Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 51 · 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: chaff from wheat grain is done by winnowing. (a) True (b) False
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a magnet (d) sand and pebbles
4. 4.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
5. 5.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
6. 6.🫗 How do we separate tea leaves from tea? (a) sieving (b) handpicking (c) evaporating (d) filtering
7. 7.🫗 Which of these is done by filtering? (a) mud from water (b) salt from sea water (c) husk from rice grain (d) sugar from sugar water
8. 8.⚖️ 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) True (b) False
9. 9.⚖️ 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
10. 10.🫗 How do we separate bran from wheat flour? (a) filtering (b) winnowing (c) sieving (d) handpicking
11. 11.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) muddy water (d) a clean glass
13. 13.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
14. 14.⚖️ 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
15. 15.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
16. 16.⚖️ 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 amount poured (c) how clear the water is
17. 17.⚖️ 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) the filter material (c) how clear the water is
18. 18.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
19. 19.True or false: small stones from dal is done by filtering. (a) True (b) False
20. 20.🫗 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
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
22. 22.⚖️ 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) True (b) False
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same funnel (c) the amount poured (d) the same muddy water
24. 24.⚖️ 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
25. 25.🫗 How do we separate chaff from wheat grain? (a) sieving (b) filtering (c) winnowing (d) handpicking
26. 26.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
27. 27.🫗 How do we separate sugar from sugar water? (a) winnowing (b) filtering (c) evaporating (d) handpicking
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the amount poured (c) how clear the water is (d) the filter material
29. 29.⚖️ 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 change it (c) we keep it the same
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
33. 33.⚖️ 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 keep it the same (c) we measure it
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
35. 35.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) bran from wheat flour (c) bad grains from rice (d) chaff from wheat grain
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a clean glass (c) cotton or cloth (d) a funnel
38. 38.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
39. 39.🫗 Which of these is done by filtering? (a) small stones from dal (b) bad grains from rice (c) tea leaves from tea (d) husk from rice grain
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) cotton or cloth (d) a balloon

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