Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 552 · 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 battery cell for the muddy water filter? (a) needed (b) not needed
2. 2.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it sinks to the bottom (d) it floats on top
3. 3.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) filtering (c) winnowing (d) sieving
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind
6. 6.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) evaporating (d) sieving
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) a clean glass (d) cotton or cloth
8. 8.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) tea leaves from tea (c) bran from wheat flour (d) salt from sea water
9. 9.True or false: bad grains from rice is done by evaporating. (a) True (b) False
10. 10.🫗 Which of these is done by evaporating? (a) salt from sea water (b) tea leaves from tea (c) small stones from dal (d) mud from water
11. 11.True or false: husk from rice grain is done by winnowing. (a) False (b) True
12. 12.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) small stones from dal (c) husk from rice grain (d) bran from wheat flour
13. 13.🛟 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
14. 14.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
15. 15.True or false: mud from water is done by handpicking. (a) True (b) False
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🫗 How do we separate salt from sea water? (a) handpicking (b) evaporating (c) filtering (d) sieving
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
19. 19.⚖️ 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) False (b) True
20. 20.🫗 How do we separate bad grains from rice? (a) handpicking (b) sieving (c) filtering (d) evaporating
21. 21.True or false: bad grains from rice is done by handpicking. (a) True (b) False
22. 22.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the water evaporates (d) the mud dissolves
23. 23.⚖️ 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
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) cotton or cloth (d) yeast
25. 25.⚖️ 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 change it (b) we keep it the same (c) we measure it
26. 26.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
27. 27.True or false: small stones from dal is done by handpicking. (a) True (b) False
28. 28.⚖️ 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) the filter material (c) the same funnel (d) how clear the water is
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) muddy water (d) a mirror
30. 30.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) mud from water (c) bran from wheat flour (d) chaff from wheat grain
31. 31.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) gravel from fine sand (c) mud from water (d) sugar from sugar water
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) a battery cell (d) a balloon
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
35. 35.True or false: mud from water is done by winnowing. (a) False (b) True
36. 36.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
37. 37.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
38. 38.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same funnel (c) the filter material (d) the same muddy water
40. 40.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed

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