Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 370 · 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? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) gravel from fine sand (c) bad grains from rice (d) tea leaves from tea
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
4. 4.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the filter adds soap (d) the water evaporates
5. 5.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
6. 6.🛟 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
7. 7.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
8. 8.🛟 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
9. 9.⚖️ 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 same funnel (c) the filter material (d) the amount poured
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.🫗 How do we separate salt from sea water? (a) winnowing (b) evaporating (c) handpicking (d) sieving
12. 12.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind
13. 13.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
15. 15.⚖️ 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) the same muddy water (c) how clear the water is
16. 16.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
17. 17.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) tea leaves from tea (c) sugar from sugar water (d) salt from sea water
18. 18.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) handpicking (d) winnowing
19. 19.⚖️ 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
20. 20.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
21. 21.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) salt from sea water (c) bran from wheat flour (d) bad grains from rice
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
23. 23.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a balloon (d) sand and pebbles
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) muddy water (d) a mirror
26. 26.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) husk from rice grain (c) sugar from sugar water (d) small stones from dal
27. 27.🫗 How do we separate bran from wheat flour? (a) filtering (b) evaporating (c) sieving (d) handpicking
28. 28.True or false: chaff from wheat grain is done by evaporating. (a) True (b) False
29. 29.True or false: husk from rice grain is done by winnowing. (a) False (b) True
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
31. 31.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) yeast (d) sand and pebbles
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a clean glass (d) cotton or cloth
34. 34.🫗 How do we separate tea leaves from tea? (a) winnowing (b) handpicking (c) sieving (d) filtering
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.🫗 How do we separate mud from water? (a) handpicking (b) winnowing (c) sieving (d) filtering
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the filter material (c) how clear the water is (d) the amount poured
38. 38.⚖️ 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
39. 39.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a funnel (c) a magnet (d) turmeric powder

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