Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 313 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
2. 2.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
3. 3.⚖️ 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 keep it the same (b) we change it (c) we measure it
4. 4.⚖️ 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
5. 5.🔮 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
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) turmeric powder (d) sand and pebbles
7. 7.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
8. 8.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
9. 9.⚖️ 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
10. 10.True or false: bad grains from rice is done by winnowing. (a) True (b) False
11. 11.⚖️ 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
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a clean glass (d) a magnet
13. 13.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
14. 14.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
15. 15.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a battery cell (c) a balloon (d) a mirror
16. 16.🫗 How do we separate bran from wheat flour? (a) sieving (b) filtering (c) handpicking (d) evaporating
17. 17.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) both stay behind (d) leaves pass through
18. 18.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) winnowing (d) filtering
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the water evaporates (d) the mud dissolves
21. 21.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
22. 22.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) a clean glass (d) a funnel
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 change it (b) we keep it the same (c) we measure it
25. 25.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
26. 26.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) winnowing (d) sieving
27. 27.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a funnel (d) a magnet
28. 28.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
29. 29.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
30. 30.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) sugar from sugar water (c) tea leaves from tea (d) salt from sea water
31. 31.⚖️ 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
32. 32.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
33. 33.🫗 How do we separate gravel from fine sand? (a) sieving (b) filtering (c) winnowing (d) handpicking
34. 34.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
35. 35.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
36. 36.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) muddy water (d) a balloon
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) muddy water (c) sand and pebbles (d) cotton or cloth
39. 39.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) chaff from wheat grain (c) sugar from sugar water (d) mud from water
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a battery cell (d) sand and pebbles

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