Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 810 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a balloon (c) muddy water (d) sand and pebbles
2. 2.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) a battery cell (d) a clean glass
6. 6.True or false: husk from rice grain is done by sieving. (a) True (b) False
7. 7.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) small stones from dal (c) bad grains from rice (d) bran from wheat flour
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a mirror (d) muddy water
10. 10.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) sieving (d) winnowing
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🫗 How do we separate salt from sea water? (a) winnowing (b) sieving (c) filtering (d) evaporating
14. 14.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a magnet (d) yeast
15. 15.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a battery cell (d) turmeric powder
16. 16.⚖️ 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 amount poured (c) the filter material
17. 17.🔮 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
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
19. 19.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) bad grains from rice (c) mud from water (d) salt from sea water
20. 20.🫗 Which of these is done by handpicking? (a) mud from water (b) bran from wheat flour (c) bad grains from rice (d) salt from sea water
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
24. 24.True or false: yeast is needed for the muddy water filter. (a) False (b) True
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) turmeric powder (d) cotton or cloth
26. 26.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
27. 27.True or false: tea leaves from tea is done by filtering. (a) False (b) True
28. 28.⚖️ 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) how clear the water is (c) the filter material (d) the same glass
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) a funnel (d) a clean glass
30. 30.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
31. 31.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) gravel from fine sand (c) chaff from wheat grain (d) bad grains from rice
32. 32.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Do we need yeast 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? True or false: the amount poured is the one thing we change. (a) True (b) False
35. 35.🫗 How do we separate husk from rice grain? (a) evaporating (b) handpicking (c) winnowing (d) filtering
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
37. 37.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
38. 38.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
39. 39.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a balloon (d) cotton or cloth

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