Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 96 · 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? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
2. 2.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
3. 3.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
4. 4.🧺 Do we need a funnel 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 filter material (b) the amount poured (c) the same funnel (d) the same glass
6. 6.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) handpicking (d) winnowing
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a magnet (c) sand and pebbles (d) a clean glass
8. 8.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
9. 9.True or false: husk from rice grain is done by filtering. (a) True (b) False
10. 10.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) nothing is needed (d) wipe hands on face
11. 11.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) muddy water (d) yeast
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a mirror (d) a clean glass
17. 17.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) a clean glass (d) muddy water
19. 19.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
20. 20.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bad grains from rice (c) husk from rice grain (d) sugar from sugar water
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) muddy water (d) a mirror
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) turmeric powder (d) sand and pebbles
23. 23.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) tea leaves from tea (c) small stones from dal (d) sugar from sugar water
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) False (b) True
25. 25.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
26. 26.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
27. 27.True or false: small stones from dal is done by filtering. (a) False (b) True
28. 28.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
29. 29.🫗 How do we separate small stones from dal? (a) evaporating (b) filtering (c) sieving (d) handpicking
30. 30.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
31. 31.🫗 Which of these is done by evaporating? (a) mud from water (b) salt from sea water (c) gravel from fine sand (d) bran from wheat flour
32. 32.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) evaporating (d) handpicking
33. 33.🫗 How do we separate husk from rice grain? (a) handpicking (b) sieving (c) evaporating (d) winnowing
34. 34.⚖️ 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 glass
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) muddy water (c) sand and pebbles (d) cotton or cloth
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.⚖️ 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
38. 38.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
39. 39.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True

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