Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 187 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) muddy water (c) sand and pebbles (d) a funnel
2. 2.🫗 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
3. 3.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
4. 4.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a balloon (c) a battery cell (d) yeast
6. 6.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) gravel from fine sand (c) sugar from sugar water (d) bran from wheat flour
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) sand and pebbles (c) a clean glass (d) muddy water
9. 9.🫗 Which of these is done by filtering? (a) small stones from dal (b) bad grains from rice (c) mud from water (d) sugar from sugar water
10. 10.🫗 Which of these is done by handpicking? (a) small stones from dal (b) chaff from wheat grain (c) salt from sea water (d) gravel from fine sand
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) yeast (d) sand and pebbles
12. 12.🫗 How do we separate husk from rice grain? (a) handpicking (b) evaporating (c) winnowing (d) filtering
13. 13.⚖️ 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
14. 14.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
15. 15.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
17. 17.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
18. 18.True or false: small stones from dal is done by sieving. (a) False (b) True
19. 19.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
20. 20.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a balloon
22. 22.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bran from wheat flour (c) chaff from wheat grain (d) bad grains from rice
23. 23.True or false: small stones from dal is done by winnowing. (a) True (b) False
24. 24.⚖️ 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 glass (c) the same funnel (d) how clear the water is
25. 25.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
26. 26.🫗 How do we separate small stones from dal? (a) winnowing (b) filtering (c) sieving (d) handpicking
27. 27.⚖️ 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) how clear the water is (c) the same muddy water
28. 28.True or false: sugar from sugar water is done by sieving. (a) False (b) True
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 keep it the same (c) we change it
30. 30.True or false: bad grains from rice is done by sieving. (a) False (b) True
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) turmeric powder (d) a funnel
32. 32.🫗 How do we separate bran from wheat flour? (a) winnowing (b) sieving (c) filtering (d) evaporating
33. 33.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) tea leaves from tea (c) chaff from wheat grain (d) salt from sea water
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
36. 36.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) turmeric powder (d) sand and pebbles
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) sieving (b) winnowing (c) handpicking (d) evaporating
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the filter material (c) the same muddy water (d) the same funnel

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