Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 765 · 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.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) a clean glass (d) muddy water
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) muddier (d) clearer
4. 4.🔍 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 dissolves (d) it turns to sand
5. 5.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
6. 6.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) sugar from sugar water (c) bran from wheat flour (d) small stones from dal
7. 7.True or false: gravel from fine sand is done by evaporating. (a) True (b) False
8. 8.True or false: salt from sea water is done by handpicking. (a) True (b) False
9. 9.🫗 Which of these is done by sieving? (a) mud from water (b) bran from wheat flour (c) salt from sea water (d) bad grains from rice
10. 10.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) chaff from wheat grain (c) salt from sea water (d) tea leaves from tea
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) cotton or cloth (d) yeast
13. 13.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
14. 14.🔮 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) no, salt passes through (d) it turns to sand
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same muddy water (c) how clear the water is
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the mud (d) the water
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a funnel (c) a balloon (d) yeast
18. 18.True or false: husk from rice grain is done by evaporating. (a) False (b) True
19. 19.⚖️ 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 funnel (b) the same muddy water (c) the same glass (d) the filter material
20. 20.🫗 Which of these is done by filtering? (a) mud from water (b) salt from sea water (c) bran from wheat flour (d) bad grains from rice
21. 21.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
22. 22.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) winnowing (d) sieving
23. 23.🫗 How do we separate mud from water? (a) evaporating (b) filtering (c) handpicking (d) sieving
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
26. 26.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) cotton or cloth (d) a clean glass
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) how clear the water is (c) the filter material (d) the amount poured
29. 29.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a battery cell (d) sand and pebbles
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) a clean glass (d) a mirror
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) a balloon (d) cotton or cloth
33. 33.⚖️ 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 change it (c) we measure it
34. 34.⚖️ 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 measure it (c) we keep it the same
35. 35.🫗 How do we separate gravel from fine sand? (a) evaporating (b) filtering (c) handpicking (d) sieving
36. 36.True or false: bad grains from rice is done by handpicking. (a) False (b) True
37. 37.🫗 How do we separate tea leaves from tea? (a) winnowing (b) handpicking (c) filtering (d) sieving
38. 38.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) muddy water (c) a funnel (d) a clean glass
40. 40.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) a magnet (d) sand and pebbles

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