Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 179 · 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.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
2. 2.⚖️ 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
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
4. 4.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
5. 5.⚖️ 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 muddy water (b) how clear the water is (c) the filter material (d) the same funnel
6. 6.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
7. 7.True or false: tea leaves from tea is done by filtering. (a) True (b) False
8. 8.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
9. 9.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) filtering (d) evaporating
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a balloon
11. 11.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
12. 12.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) sugar from sugar water (c) bad grains from rice (d) tea leaves from tea
13. 13.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the filter adds soap (d) the water evaporates
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
15. 15.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
16. 16.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
17. 17.True or false: husk from rice grain is done by winnowing. (a) True (b) False
18. 18.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
19. 19.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) muddy water (d) a mirror
23. 23.🫗 How do we separate tea leaves from tea? (a) filtering (b) evaporating (c) winnowing (d) handpicking
24. 24.⚖️ 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
25. 25.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the filter material (c) how clear the water is (d) the same glass
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) gravel from fine sand (c) bad grains from rice (d) husk from rice grain
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) turmeric powder (d) a funnel
30. 30.True or false: yeast is needed for the muddy water filter. (a) False (b) True
31. 31.True or false: gravel from fine sand is done by sieving. (a) True (b) False
32. 32.🫗 Which of these is done by sieving? (a) husk from rice grain (b) gravel from fine sand (c) tea leaves from tea (d) sugar from sugar water
33. 33.🫗 How do we separate bran from wheat flour? (a) handpicking (b) evaporating (c) winnowing (d) sieving
34. 34.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) cotton or cloth (d) sand and pebbles
36. 36.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) bran from wheat flour (c) husk from rice grain (d) tea leaves from tea
37. 37.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) turmeric powder (d) cotton or cloth
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) turmeric powder (d) cotton or cloth
40. 40.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed

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