Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 495 · 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.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) a clean glass (d) muddy water
2. 2.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) both stay behind (d) tea stays behind
3. 3.🔮 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) no, salt passes through (d) yes, all of it
4. 4.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
5. 5.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
6. 6.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a mirror (d) cotton or cloth
7. 7.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
8. 8.True or false: bad grains from rice is done by handpicking. (a) False (b) True
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
11. 11.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) evaporating (d) filtering
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the same glass (c) the filter material (d) how clear the water is
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 change it (b) we keep it the same (c) we measure it
14. 14.⚖️ 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
15. 15.🛟 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
16. 16.⚖️ 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 filter material (c) the amount poured (d) how clear the water is
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) a funnel (d) a clean glass
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
19. 19.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
20. 20.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
21. 21.🫗 How do we separate chaff from wheat grain? (a) filtering (b) winnowing (c) sieving (d) handpicking
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) a mirror (d) muddy water
23. 23.True or false: salt from sea water is done by evaporating. (a) True (b) False
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) a mirror (d) sand and pebbles
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) cotton or cloth (c) a clean glass (d) muddy water
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) cotton or cloth (d) a clean glass
27. 27.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) a clean glass (d) a funnel
29. 29.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
30. 30.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
31. 31.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
32. 32.True or false: small stones from dal is done by handpicking. (a) True (b) False
33. 33.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) sugar from sugar water (c) bad grains from rice (d) mud from water
34. 34.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
35. 35.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) salt from sea water (c) husk from rice grain (d) bran from wheat flour
36. 36.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
37. 37.⚖️ 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) True (b) False
38. 38.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) tea leaves from tea (c) chaff from wheat grain (d) husk from rice grain
39. 39.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
40. 40.True or false: a balloon is needed for the muddy water filter. (a) True (b) False

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