Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 220 · 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 what we measure? (a) the filter material (b) the same glass (c) the amount poured (d) how clear the water is
2. 2.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a clean glass (c) sand and pebbles (d) a funnel
6. 6.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) handpicking (d) filtering
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) small stones from dal (c) husk from rice grain (d) salt from sea water
9. 9.🫗 Which of these is done by winnowing? (a) mud from water (b) bad grains from rice (c) chaff from wheat grain (d) small stones from dal
10. 10.🫗 How do we separate mud from water? (a) sieving (b) evaporating (c) handpicking (d) filtering
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) muddy water (c) a magnet (d) a mirror
13. 13.🫗 Which of these is done by evaporating? (a) small stones from dal (b) mud from water (c) sugar from sugar water (d) chaff from wheat grain
14. 14.⚖️ 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 measure it (b) we keep it the same (c) we change it
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) a funnel (d) muddy water
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) muddy water (c) a clean glass (d) cotton or cloth
17. 17.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
18. 18.⚖️ 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 muddy water (c) the filter material
19. 19.🔍 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 turns to sand (d) it dissolves
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a funnel (d) a balloon
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a battery cell (d) cotton or cloth
22. 22.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
23. 23.True or false: bran from wheat flour is done by sieving. (a) True (b) False
24. 24.⚖️ 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
25. 25.True or false: small stones from dal is done by sieving. (a) False (b) True
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
29. 29.⚖️ 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
30. 30.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
31. 31.🫗 How do we separate bad grains from rice? (a) sieving (b) handpicking (c) filtering (d) evaporating
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) muddy water (d) yeast
34. 34.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
35. 35.⚖️ 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
36. 36.🫗 Which of these is done by filtering? (a) mud from water (b) sugar from sugar water (c) chaff from wheat grain (d) small stones from dal
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) a clean glass (d) muddy water
38. 38.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
39. 39.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
40. 40.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) filtering (d) sieving

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