Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 523 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
2. 2.🧺 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
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) a clean glass (d) cotton or cloth
4. 4.🫗 Which of these is done by sieving? (a) husk from rice grain (b) gravel from fine sand (c) salt from sea water (d) tea leaves from tea
5. 5.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
8. 8.True or false: husk from rice grain is done by evaporating. (a) False (b) True
9. 9.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
10. 10.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
11. 11.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
12. 12.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bad grains from rice (c) salt from sea water (d) bran from wheat flour
13. 13.🫗 Which of these is done by sieving? (a) husk from rice grain (b) chaff from wheat grain (c) bran from wheat flour (d) sugar from sugar water
14. 14.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
15. 15.🫗 Which of these is done by winnowing? (a) mud from water (b) salt from sea water (c) bad grains from rice (d) chaff from wheat grain
16. 16.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) handpicking (d) evaporating
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a clean glass (d) turmeric powder
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a funnel (d) cotton or cloth
19. 19.True or false: salt from sea water is done by evaporating. (a) True (b) False
20. 20.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a mirror (c) a battery cell (d) turmeric powder
21. 21.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
22. 22.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) a mirror (d) sand and pebbles
24. 24.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
25. 25.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
26. 26.True or false: sugar from sugar water is done by sieving. (a) False (b) True
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) sand and pebbles (d) a balloon
28. 28.⚖️ 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
29. 29.True or false: bad grains from rice is done by filtering. (a) False (b) True
30. 30.🫗 How do we separate bran from wheat flour? (a) winnowing (b) filtering (c) sieving (d) handpicking
31. 31.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) evaporating (d) winnowing
32. 32.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
33. 33.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) a mirror (d) yeast
34. 34.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) salt from sea water (c) husk from rice grain (d) bad grains from rice
35. 35.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
37. 37.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
38. 38.⚖️ 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 funnel (c) the filter material
39. 39.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a magnet (d) cotton or cloth

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