Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 889 · 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 the one thing we change? (a) the same glass (b) the same funnel (c) the filter material (d) how clear the water is
2. 2.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
3. 3.True or false: mud from water is done by filtering. (a) True (b) False
4. 4.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) sugar from sugar water (c) husk from rice grain (d) bad grains from rice
5. 5.True or false: chaff from wheat grain is done by evaporating. (a) True (b) False
6. 6.🫗 Which of these is done by filtering? (a) salt from sea water (b) small stones from dal (c) sugar from sugar water (d) mud from water
7. 7.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) sand and pebbles (d) a battery cell
9. 9.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) salt from sea water (c) small stones from dal (d) chaff from wheat grain
10. 10.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a mirror (c) cotton or cloth (d) muddy water
12. 12.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) sieving (c) evaporating (d) winnowing
13. 13.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
14. 14.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
15. 15.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the filter adds soap (d) the mud dissolves
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a clean glass (c) cotton or cloth (d) muddy water
17. 17.🛟 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
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same glass (c) the same muddy water (d) the same funnel
19. 19.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
20. 20.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) handpicking (d) evaporating
21. 21.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) salt from sea water (c) mud from water (d) small stones from dal
22. 22.🫗 How do we separate husk from rice grain? (a) evaporating (b) filtering (c) handpicking (d) winnowing
23. 23.🫗 How do we separate sugar from sugar water? (a) sieving (b) winnowing (c) evaporating (d) handpicking
24. 24.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) the filter material (c) how clear the water is
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
28. 28.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) clearer (d) hot
29. 29.🔮 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
30. 30.⚖️ 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
31. 31.🫗 Which of these is done by winnowing? (a) small stones from dal (b) chaff from wheat grain (c) bad grains from rice (d) sugar from sugar water
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a magnet (d) muddy water
33. 33.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
34. 34.True or false: small stones from dal is done by handpicking. (a) False (b) True
35. 35.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) salt from sea water (c) tea leaves from tea (d) small stones from dal
36. 36.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) sand and pebbles (d) a balloon
38. 38.🔮 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
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed

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