Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 628 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) cotton or cloth (d) a clean glass
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a magnet (d) a clean glass
4. 4.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
5. 5.🧺 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 mirror
6. 6.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the water evaporates (d) the filter traps mud
7. 7.⚖️ 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 funnel (d) the filter material
8. 8.⚖️ 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) True (b) False
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same muddy water
11. 11.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) filtering (d) winnowing
14. 14.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
15. 15.🔮 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
16. 16.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
17. 17.True or false: gravel from fine sand is done by filtering. (a) True (b) False
18. 18.⚖️ 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
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) turmeric powder (d) muddy water
21. 21.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) a balloon (d) a battery cell
22. 22.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) handpicking (d) evaporating
23. 23.🔮 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
24. 24.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
25. 25.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) small stones from dal (c) mud from water (d) bran from wheat flour
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
27. 27.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) small stones from dal (c) sugar from sugar water (d) gravel from fine sand
28. 28.🫗 How do we separate tea leaves from tea? (a) sieving (b) winnowing (c) handpicking (d) filtering
29. 29.True or false: small stones from dal is done by winnowing. (a) False (b) True
30. 30.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) husk from rice grain (c) salt from sea water (d) mud from water
31. 31.⚖️ 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) True (b) False
32. 32.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
33. 33.⚖️ 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 change it (c) we measure it
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 change it (b) we measure it (c) we keep it the same
35. 35.True or false: salt from sea water is done by handpicking. (a) False (b) True
36. 36.🫗 How do we separate small stones from dal? (a) sieving (b) handpicking (c) evaporating (d) filtering
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) sand and pebbles (c) muddy water (d) a funnel
38. 38.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bad grains from rice (c) chaff from wheat grain (d) tea leaves from tea
39. 39.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
40. 40.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) tea leaves from tea (c) chaff from wheat grain (d) bran from wheat flour

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