Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 882 · 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? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
3. 3.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
4. 4.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
5. 5.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) mud from water (c) bran from wheat flour (d) husk from rice grain
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) muddier (d) hot
7. 7.⚖️ 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 same funnel (c) how clear the water is (d) the filter material
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) muddy water (c) cotton or cloth (d) a clean glass
10. 10.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
11. 11.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a battery cell (c) muddy water (d) a clean glass
14. 14.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
15. 15.🫗 How do we separate bad grains from rice? (a) sieving (b) handpicking (c) filtering (d) winnowing
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a funnel (c) muddy water (d) sand and pebbles
17. 17.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
18. 18.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
19. 19.🛟 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
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) a funnel (d) cotton or cloth
21. 21.True or false: bran from wheat flour is done by sieving. (a) True (b) False
22. 22.🫗 How do we separate tea leaves from tea? (a) handpicking (b) filtering (c) sieving (d) evaporating
23. 23.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
24. 24.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a magnet (c) cotton or cloth (d) sand and pebbles
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a mirror (d) sand and pebbles
28. 28.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) handpicking (d) sieving
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the same glass (c) the filter material (d) how clear the water is
30. 30.True or false: gravel from fine sand is done by sieving. (a) False (b) True
31. 31.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
32. 32.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) muddy water (d) a clean glass
34. 34.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sugar (d) it turns to sand
35. 35.⚖️ 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 glass (c) the filter material
36. 36.True or false: small stones from dal is done by handpicking. (a) False (b) True
37. 37.⚖️ 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
38. 38.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
39. 39.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) mud from water (c) salt from sea water (d) bran from wheat flour
40. 40.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed

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