Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 669 · 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? Which of these is kept the same? (a) how clear the water is (b) the same funnel (c) the filter material
2. 2.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
3. 3.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
4. 4.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) handpicking (d) filtering
5. 5.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) winnowing (d) filtering
6. 6.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
7. 7.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
8. 8.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
9. 9.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) husk from rice grain (c) bran from wheat flour (d) sugar from sugar water
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) yeast (d) a mirror
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
12. 12.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) cotton or cloth (d) a battery cell
14. 14.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
15. 15.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
16. 16.True or false: husk from rice grain is done by handpicking. (a) True (b) False
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) muddy water (c) cotton or cloth (d) sand and pebbles
18. 18.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) small stones from dal (c) chaff from wheat grain (d) mud from water
19. 19.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
20. 20.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
21. 21.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
22. 22.🔮 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
23. 23.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) evaporating (c) winnowing (d) filtering
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 keep it the same (b) we measure it (c) we change it
25. 25.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
26. 26.True or false: yeast is needed for the muddy water filter. (a) False (b) True
27. 27.True or false: husk from rice grain is done by winnowing. (a) False (b) True
28. 28.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) sand and pebbles (d) a magnet
30. 30.🫗 How do we separate small stones from dal? (a) sieving (b) winnowing (c) evaporating (d) handpicking
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) a funnel (d) a clean glass
32. 32.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
33. 33.🫗 How do we separate tea leaves from tea? (a) sieving (b) filtering (c) winnowing (d) handpicking
34. 34.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, always (d) yes, if it is cold
35. 35.⚖️ 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) False (b) True
36. 36.⚖️ 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) False (b) True
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) sand and pebbles (d) a funnel
38. 38.⚖️ 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 change it (c) we keep it the same
39. 39.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
40. 40.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) bran from wheat flour (c) salt from sea water (d) small stones from dal

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