Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 805 · 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.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) yeast (d) a funnel
4. 4.True or false: chaff from wheat grain is done by handpicking. (a) True (b) False
5. 5.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
7. 7.⚖️ 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 keep it the same (c) we measure it
8. 8.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
9. 9.⚖️ 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 filter material (c) the same muddy water (d) the amount poured
10. 10.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
11. 11.🛟 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
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.🫗 Which of these is done by filtering? (a) husk from rice grain (b) sugar from sugar water (c) salt from sea water (d) tea leaves from tea
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.⚖️ 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 change it (b) we keep it the same (c) we measure it
16. 16.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
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 change it (b) we keep it the same (c) we measure it
18. 18.🧺 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
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) turmeric powder (c) sand and pebbles (d) a funnel
20. 20.🫗 How do we separate husk from rice grain? (a) evaporating (b) sieving (c) handpicking (d) winnowing
21. 21.⚖️ 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
22. 22.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
23. 23.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
24. 24.⚖️ 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
25. 25.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
26. 26.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) evaporating (d) winnowing
27. 27.True or false: small stones from dal is done by handpicking. (a) True (b) False
28. 28.⚖️ 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
29. 29.🫗 Which of these is done by winnowing? (a) small stones from dal (b) sugar from sugar water (c) husk from rice grain (d) salt from sea water
30. 30.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
31. 31.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter traps mud (d) the filter adds soap
32. 32.⚖️ 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 glass (b) the filter material (c) the amount poured (d) the same muddy water
33. 33.True or false: sugar from sugar water is done by filtering. (a) True (b) False
34. 34.🫗 How do we separate bad grains from rice? (a) sieving (b) filtering (c) handpicking (d) winnowing
35. 35.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a funnel (d) a balloon
37. 37.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
40. 40.⚖️ 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) True (b) False

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