Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 285 · 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.⚖️ 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
2. 2.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) husk from rice grain (c) small stones from dal (d) bran from wheat flour
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) a balloon
4. 4.True or false: tea leaves from tea is done by filtering. (a) True (b) False
5. 5.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
6. 6.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) husk from rice grain (c) small stones from dal (d) mud from water
7. 7.🫗 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
8. 8.⚖️ 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 amount poured
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
10. 10.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) yeast
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) turmeric powder (d) a clean glass
14. 14.🫗 How do we separate mud from water? (a) filtering (b) handpicking (c) evaporating (d) sieving
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) sand and pebbles (d) muddy water
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
19. 19.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
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 amount poured (c) the filter material (d) the same funnel
21. 21.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
22. 22.🫗 How do we separate small stones from dal? (a) handpicking (b) filtering (c) evaporating (d) sieving
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) a battery cell (d) muddy water
24. 24.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) tea stays behind (d) leaves stay behind
25. 25.⚖️ 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
26. 26.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a funnel (d) a battery cell
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
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 change it (b) we keep it the same (c) we measure it
30. 30.True or false: bad grains from rice is done by evaporating. (a) False (b) True
31. 31.⚖️ 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
32. 32.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
34. 34.🫗 How do we separate bran from wheat flour? (a) winnowing (b) filtering (c) handpicking (d) sieving
35. 35.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
36. 36.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) salt from sea water (c) small stones from dal (d) bad grains from rice
37. 37.True or false: bad grains from rice is done by handpicking. (a) True (b) False
38. 38.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
39. 39.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) winnowing (d) sieving
40. 40.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False

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