Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 210 · 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.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
2. 2.⚖️ 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
3. 3.⚖️ 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
4. 4.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
5. 5.🫗 How do we separate tea leaves from tea? (a) sieving (b) handpicking (c) filtering (d) evaporating
6. 6.🫗 How do we separate bran from wheat flour? (a) winnowing (b) evaporating (c) handpicking (d) sieving
7. 7.True or false: yeast is needed for the muddy water filter. (a) True (b) False
8. 8.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) muddy water (c) a magnet (d) a battery cell
9. 9.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
12. 12.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a mirror (c) cotton or cloth (d) a clean glass
14. 14.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same muddy water (c) the filter material (d) how clear the water is
17. 17.True or false: mud from water is done by filtering. (a) False (b) True
18. 18.⚖️ 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) the filter material (c) how clear the water is
19. 19.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) yeast (d) sand and pebbles
21. 21.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
22. 22.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a clean glass (c) sand and pebbles (d) muddy water
24. 24.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
25. 25.True or false: gravel from fine sand is done by evaporating. (a) True (b) False
26. 26.🫗 Which of these is done by filtering? (a) husk from rice grain (b) chaff from wheat grain (c) bad grains from rice (d) mud from water
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a balloon (d) a clean glass
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) cotton or cloth (d) a clean glass
29. 29.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
30. 30.🫗 How do we separate sugar from sugar water? (a) handpicking (b) sieving (c) filtering (d) evaporating
31. 31.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier
32. 32.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
33. 33.🫗 How do we separate small stones from dal? (a) handpicking (b) filtering (c) sieving (d) winnowing
34. 34.⚖️ 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 muddy water (c) the same glass (d) the amount poured
35. 35.🫗 Which of these is done by sieving? (a) salt from sea water (b) sugar from sugar water (c) bran from wheat flour (d) husk from rice grain
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) a funnel (d) sand and pebbles
37. 37.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
38. 38.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
39. 39.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
40. 40.🫗 How do we separate gravel from fine sand? (a) evaporating (b) winnowing (c) handpicking (d) sieving

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