Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 441 · 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 needed for the muddy water filter? (a) a magnet (b) yeast (c) a funnel (d) turmeric powder
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) filtering (d) handpicking
4. 4.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a magnet (c) turmeric powder (d) yeast
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a battery cell (d) a funnel
6. 6.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
8. 8.True or false: husk from rice grain is done by winnowing. (a) False (b) True
9. 9.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
11. 11.🫗 How do we separate husk from rice grain? (a) evaporating (b) sieving (c) winnowing (d) filtering
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a magnet (d) a funnel
13. 13.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a balloon (d) cotton or cloth
15. 15.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) turmeric powder (d) a balloon
16. 16.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) sieving (d) handpicking
17. 17.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
18. 18.True or false: gravel from fine sand is done by evaporating. (a) True (b) False
19. 19.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
20. 20.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
21. 21.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a magnet (c) cotton or cloth (d) muddy water
24. 24.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) filtering (d) handpicking
25. 25.True or false: bran from wheat flour is done by sieving. (a) False (b) True
26. 26.🫗 How do we separate mud from water? (a) winnowing (b) sieving (c) filtering (d) handpicking
27. 27.⚖️ 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 funnel
28. 28.True or false: bran from wheat flour is done by winnowing. (a) False (b) True
29. 29.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
30. 30.⚖️ 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
31. 31.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
32. 32.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
33. 33.⚖️ 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 muddy water (c) how clear the water is (d) the same glass
34. 34.⚖️ 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) True (b) False
35. 35.⚖️ 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 keep it the same (c) we measure it
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) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) yeast (d) a funnel
39. 39.🛟 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
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) a funnel (d) a clean glass

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