Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 599 · 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 glass”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
3. 3.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
4. 4.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) sugar from sugar water (c) salt from sea water (d) bran from wheat flour
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves pass through (d) leaves stay behind
6. 6.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
7. 7.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
8. 8.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
9. 9.🫗 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
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
11. 11.🫗 How do we separate tea leaves from tea? (a) filtering (b) winnowing (c) handpicking (d) evaporating
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same funnel (c) the same glass (d) the filter material
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a battery cell (d) cotton or cloth
15. 15.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) turmeric powder (d) muddy water
17. 17.True or false: bad grains from rice is done by handpicking. (a) False (b) True
18. 18.True or false: bad grains from rice is done by sieving. (a) False (b) True
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same muddy water (c) the filter material
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a mirror (d) cotton or cloth
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) a funnel (d) muddy water
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a magnet (d) a funnel
24. 24.🫗 Which of these is done by handpicking? (a) salt from sea water (b) bad grains from rice (c) gravel from fine sand (d) sugar from sugar water
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
26. 26.⚖️ 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) False (b) True
27. 27.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) filtering (d) handpicking
28. 28.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
29. 29.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the water (d) the salt
30. 30.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
31. 31.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.True or false: husk from rice grain is done by sieving. (a) False (b) True
34. 34.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) filtering (d) evaporating
35. 35.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
36. 36.True or false: small stones from dal is done by evaporating. (a) False (b) True
37. 37.True or false: sugar from sugar water is done by filtering. (a) False (b) True
38. 38.🫗 Which of these is done by winnowing? (a) small stones from dal (b) salt from sea water (c) tea leaves from tea (d) husk from rice grain
39. 39.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) small stones from dal (c) sugar from sugar water (d) gravel from fine sand
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) sand and pebbles (d) a battery cell

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