Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 326 · 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.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) winnowing (d) handpicking
2. 2.🫗 Which of these is done by filtering? (a) husk from rice grain (b) sugar from sugar water (c) salt from sea water (d) mud from water
3. 3.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
4. 4.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) mud from water (c) small stones from dal (d) bran from wheat flour
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the amount poured (d) how clear the water is
7. 7.🫗 How do we separate small stones from dal? (a) sieving (b) filtering (c) handpicking (d) evaporating
8. 8.🫗 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
9. 9.⚖️ 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 funnel
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a battery cell
11. 11.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
12. 12.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
13. 13.🫗 How do we separate mud from water? (a) filtering (b) handpicking (c) sieving (d) evaporating
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a magnet
15. 15.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) salt from sea water (c) tea leaves from tea (d) husk from rice grain
16. 16.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
17. 17.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) husk from rice grain (c) bad grains from rice (d) salt from sea water
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a mirror (c) sand and pebbles (d) muddy water
19. 19.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
20. 20.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) cotton or cloth (d) yeast
22. 22.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
23. 23.True or false: salt from sea water is done by evaporating. (a) True (b) False
24. 24.🫗 Which of these is done by evaporating? (a) salt from sea water (b) tea leaves from tea (c) chaff from wheat grain (d) small stones from dal
25. 25.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
26. 26.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
27. 27.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
28. 28.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
29. 29.True or false: mud from water is done by sieving. (a) True (b) False
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) a funnel (d) cotton or cloth
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) a clean glass (d) cotton or cloth
32. 32.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
33. 33.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
36. 36.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) muddy water (d) a balloon
37. 37.True or false: bad grains from rice is done by filtering. (a) True (b) False
38. 38.⚖️ 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
39. 39.🫗 How do we separate gravel from fine sand? (a) filtering (b) evaporating (c) sieving (d) winnowing
40. 40.⚖️ 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 glass

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