Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 105 · 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: sugar from sugar water is done by handpicking. (a) False (b) True
2. 2.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
3. 3.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
4. 4.🫗 Which of these is done by filtering? (a) mud from water (b) husk from rice grain (c) bran from wheat flour (d) bad grains from rice
5. 5.⚖️ 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
6. 6.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) a magnet (d) yeast
7. 7.🔮 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
8. 8.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a funnel (c) cotton or cloth (d) muddy water
11. 11.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the amount poured (d) the filter material
14. 14.🫗 How do we separate salt from sea water? (a) handpicking (b) sieving (c) evaporating (d) filtering
15. 15.True or false: salt from sea water is done by evaporating. (a) False (b) True
16. 16.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
17. 17.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) mud from water (c) tea leaves from tea (d) bad grains from rice
18. 18.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
19. 19.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
20. 20.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
21. 21.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) evaporating (d) handpicking
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) a magnet (d) a battery cell
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) turmeric powder (d) cotton or cloth
24. 24.🫗 How do we separate small stones from dal? (a) handpicking (b) filtering (c) evaporating (d) sieving
25. 25.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
26. 26.⚖️ 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) how clear the water is (c) the same muddy water
27. 27.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
28. 28.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) bad grains from rice (c) mud from water (d) sugar from sugar water
29. 29.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) a magnet (d) a balloon
30. 30.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) bran from wheat flour (d) tea leaves from tea
31. 31.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) yes, if it is clear (d) no, germs may stay
32. 32.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) cotton or cloth (c) a clean glass (d) muddy water
34. 34.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
35. 35.True or false: bad grains from rice is done by evaporating. (a) False (b) True
36. 36.True or false: yeast is needed for the muddy water filter. (a) False (b) True
37. 37.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) winnowing (d) evaporating
38. 38.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
40. 40.True or false: muddy water is needed for the muddy water filter. (a) False (b) True

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