Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 422 · 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? True or false: the same glass is the one thing we change. (a) False (b) True
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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) cotton or cloth (c) a funnel (d) a clean glass
4. 4.⚖️ 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
5. 5.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
6. 6.True or false: bran from wheat flour is done by sieving. (a) False (b) True
7. 7.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
8. 8.True or false: small stones from dal is done by handpicking. (a) True (b) False
9. 9.True or false: salt from sea water is done by evaporating. (a) True (b) False
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) sand and pebbles (d) cotton or cloth
11. 11.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) yeast (d) a funnel
14. 14.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) chaff from wheat grain (c) bad grains from rice (d) gravel from fine sand
15. 15.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) muddy water (d) turmeric powder
16. 16.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
17. 17.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
18. 18.⚖️ 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
19. 19.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) turmeric powder (d) a magnet
21. 21.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
22. 22.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a magnet (d) sand and pebbles
23. 23.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) filtering (d) sieving
24. 24.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) evaporating (d) sieving
25. 25.True or false: bran from wheat flour is done by winnowing. (a) False (b) True
26. 26.True or false: salt from sea water is done by handpicking. (a) True (b) False
27. 27.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
28. 28.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
29. 29.⚖️ 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
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a clean glass (c) a funnel (d) muddy water
31. 31.⚖️ 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 same glass (c) the filter material (d) the same muddy water
32. 32.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) clearer (d) salty
34. 34.🫗 How do we separate husk from rice grain? (a) sieving (b) winnowing (c) handpicking (d) evaporating
35. 35.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
36. 36.⚖️ 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 glass (c) the same muddy water (d) the amount poured
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a mirror (d) a funnel
38. 38.🫗 Which of these is done by handpicking? (a) small stones from dal (b) gravel from fine sand (c) mud from water (d) sugar from sugar water
39. 39.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
40. 40.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves

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