Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 58 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) a balloon
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) yeast (d) sand and pebbles
6. 6.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) clearer (d) hot
8. 8.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
9. 9.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a mirror (c) a balloon (d) a clean glass
10. 10.🔮 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
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.⚖️ 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
13. 13.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
14. 14.⚖️ 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
15. 15.🫗 How do we separate bad grains from rice? (a) sieving (b) evaporating (c) handpicking (d) winnowing
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) a funnel (d) muddy water
17. 17.⚖️ 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
18. 18.🫗 Which of these is done by handpicking? (a) salt from sea water (b) small stones from dal (c) bran from wheat flour (d) sugar from sugar water
19. 19.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) bran from wheat flour (c) mud from water (d) salt from sea water
20. 20.🫗 Which of these is done by sieving? (a) small stones from dal (b) bran from wheat flour (c) salt from sea water (d) tea leaves from tea
21. 21.True or false: mud from water is done by sieving. (a) False (b) True
22. 22.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
23. 23.True or false: bad grains from rice is done by handpicking. (a) True (b) False
24. 24.🔮 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
25. 25.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
26. 26.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
27. 27.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) sieving (c) winnowing (d) filtering
28. 28.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
29. 29.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) filtering (d) sieving
30. 30.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a battery cell (c) a balloon (d) turmeric powder
31. 31.🫗 How do we separate sugar from sugar water? (a) filtering (b) handpicking (c) evaporating (d) winnowing
32. 32.⚖️ 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) False (b) True
33. 33.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) cotton or cloth (d) a battery cell
37. 37.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
38. 38.True or false: small stones from dal is done by filtering. (a) False (b) True
39. 39.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
40. 40.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed

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