Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 746 · 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 what we measure? (a) the same muddy water (b) the same glass (c) how clear the water is (d) the filter material
2. 2.⚖️ 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 filter material (c) the same muddy water
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
4. 4.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
5. 5.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
6. 6.🫗 How do we separate mud from water? (a) filtering (b) handpicking (c) winnowing (d) evaporating
7. 7.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
8. 8.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) sieving (d) handpicking
9. 9.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bran from wheat flour (c) gravel from fine sand (d) small stones from dal
10. 10.⚖️ 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
11. 11.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
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 filter material (c) the same funnel (d) the same muddy water
13. 13.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
14. 14.🫗 How do we separate small stones from dal? (a) evaporating (b) filtering (c) handpicking (d) sieving
15. 15.🫗 How do we separate salt from sea water? (a) filtering (b) winnowing (c) evaporating (d) sieving
16. 16.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
17. 17.⚖️ 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) True (b) False
18. 18.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
19. 19.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
20. 20.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
21. 21.🛟 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
22. 22.🫗 How do we separate bran from wheat flour? (a) filtering (b) handpicking (c) winnowing (d) sieving
23. 23.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) leaves pass through (d) tea stays behind
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) muddy water (d) sand and pebbles
25. 25.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) turmeric powder (d) a battery cell
26. 26.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) husk from rice grain (c) bad grains from rice (d) sugar from sugar water
27. 27.🫗 How do we separate gravel from fine sand? (a) evaporating (b) handpicking (c) sieving (d) winnowing
28. 28.⚖️ 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
29. 29.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
30. 30.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
31. 31.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
32. 32.🫗 How do we separate tea leaves from tea? (a) winnowing (b) sieving (c) handpicking (d) filtering
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a battery cell (c) muddy water (d) cotton or cloth
35. 35.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
36. 36.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
37. 37.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
38. 38.🫗 How do we separate chaff from wheat grain? (a) filtering (b) sieving (c) handpicking (d) winnowing
39. 39.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
40. 40.⚖️ 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) False (b) True

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