Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 77 · 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 what we measure. (a) False (b) True
2. 2.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
3. 3.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
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 change it (b) we measure it (c) we keep it the same
5. 5.🫗 Which of these is done by filtering? (a) husk from rice grain (b) chaff from wheat grain (c) mud from water (d) bran from wheat flour
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the mud (d) the water
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a funnel (d) a magnet
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same glass (b) the amount poured (c) how clear the water is (d) the filter material
9. 9.🫗 How do we separate gravel from fine sand? (a) evaporating (b) winnowing (c) handpicking (d) sieving
10. 10.🫗 How do we separate chaff from wheat grain? (a) filtering (b) evaporating (c) handpicking (d) winnowing
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we keep it the same (b) we measure it (c) we change it
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) False (b) True
13. 13.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
14. 14.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
15. 15.True or false: tea leaves from tea is done by filtering. (a) False (b) True
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) turmeric powder (d) sand and pebbles
17. 17.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a battery cell (c) a magnet (d) a balloon
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a clean glass (d) muddy water
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a funnel (c) a clean glass (d) cotton or cloth
20. 20.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
21. 21.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
22. 22.True or false: bad grains from rice is done by handpicking. (a) False (b) True
23. 23.True or false: yeast is needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a clean glass (c) sand and pebbles (d) muddy water
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) sand and pebbles (d) a funnel
26. 26.True or false: husk from rice grain is done by sieving. (a) True (b) False
27. 27.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
28. 28.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
30. 30.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) turmeric powder (d) a funnel
31. 31.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
32. 32.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
33. 33.True or false: salt from sea water is done by evaporating. (a) False (b) True
34. 34.🫗 How do we separate husk from rice grain? (a) handpicking (b) evaporating (c) winnowing (d) sieving
35. 35.True or false: husk from rice grain is done by winnowing. (a) True (b) False
36. 36.⚖️ 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 amount poured (d) the filter material
37. 37.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
38. 38.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
39. 39.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) handpicking (d) evaporating
40. 40.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False

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