Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 482 · 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.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a battery cell (d) a balloon
2. 2.🫗 How do we separate bad grains from rice? (a) sieving (b) handpicking (c) evaporating (d) winnowing
3. 3.⚖️ 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
4. 4.⚖️ 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
5. 5.🛟 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
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a battery cell (d) a clean glass
7. 7.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
10. 10.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
11. 11.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
12. 12.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) no, germs may stay (d) yes, always
13. 13.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) handpicking (d) evaporating
14. 14.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) muddy water (d) turmeric powder
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same funnel (c) how clear the water is (d) the same muddy water
17. 17.🫗 How do we separate chaff from wheat grain? (a) sieving (b) evaporating (c) winnowing (d) filtering
18. 18.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
19. 19.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
20. 20.🫗 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
21. 21.🔮 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
22. 22.⚖️ 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
23. 23.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) winnowing (d) sieving
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) yeast (d) a battery cell
25. 25.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) chaff from wheat grain (c) mud from water (d) bad grains from rice
26. 26.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) a funnel (d) turmeric powder
27. 27.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
28. 28.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a mirror (d) muddy water
29. 29.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
30. 30.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) sieving (d) winnowing
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
34. 34.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
35. 35.⚖️ 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 funnel (b) the amount poured (c) the filter material (d) the same glass
36. 36.🫗 Which of these is done by filtering? (a) bad grains from rice (b) tea leaves from tea (c) small stones from dal (d) chaff from wheat grain
37. 37.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) cotton or cloth (d) a clean glass
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) a funnel (d) a clean glass
40. 40.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) sand and pebbles (d) a magnet

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