Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 776 · 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 done by sieving? (a) tea leaves from tea (b) bad grains from rice (c) bran from wheat flour (d) salt from sea water
2. 2.🫗 Which of these is done by filtering? (a) salt from sea water (b) tea leaves from tea (c) small stones from dal (d) bad grains from rice
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 change it (b) we measure it (c) we keep it the same
4. 4.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
5. 5.🫗 Which of these is done by filtering? (a) husk from rice grain (b) mud from water (c) small stones from dal (d) bad grains from rice
6. 6.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the amount poured (c) the filter material (d) the same muddy water
8. 8.🫗 How do we separate sugar from sugar water? (a) filtering (b) sieving (c) evaporating (d) handpicking
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a clean glass (d) a magnet
10. 10.🛟 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
11. 11.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
12. 12.⚖️ 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 measure it (c) we change it
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) muddy water (c) sand and pebbles (d) cotton or cloth
14. 14.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
15. 15.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) a clean glass (d) a mirror
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) muddy water (d) a mirror
17. 17.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) tea leaves from tea (c) bran from wheat flour (d) gravel from fine sand
18. 18.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
19. 19.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) filtering (d) sieving
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same funnel (c) the same glass (d) the filter material
21. 21.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) muddy water (d) a balloon
23. 23.True or false: chaff from wheat grain is done by handpicking. (a) True (b) False
24. 24.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
25. 25.True or false: bran from wheat flour is done by sieving. (a) False (b) True
26. 26.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) cotton or cloth (d) muddy water
28. 28.🫗 How do we separate tea leaves from tea? (a) sieving (b) handpicking (c) filtering (d) winnowing
29. 29.True or false: mud from water is done by winnowing. (a) False (b) True
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) muddy water (d) yeast
31. 31.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) bad grains from rice (c) tea leaves from tea (d) salt from sea water
32. 32.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
33. 33.🫗 How do we separate bad grains from rice? (a) sieving (b) winnowing (c) evaporating (d) handpicking
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
35. 35.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) cotton or cloth (d) a battery cell
37. 37.⚖️ 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 glass
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 change it (c) we measure it
39. 39.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
40. 40.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True

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