Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 958 · 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 muddy water for the muddy water filter? (a) needed (b) not needed
2. 2.🫗 How do we separate mud from water? (a) handpicking (b) winnowing (c) evaporating (d) filtering
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
4. 4.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
6. 6.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
7. 7.🫗 How do we separate gravel from fine sand? (a) sieving (b) winnowing (c) evaporating (d) filtering
8. 8.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it floats on top (d) it turns to sand
9. 9.🫗 How do we separate sugar from sugar water? (a) handpicking (b) filtering (c) winnowing (d) evaporating
10. 10.🫗 Which of these is done by sieving? (a) bad grains from rice (b) bran from wheat flour (c) husk from rice grain (d) chaff from wheat grain
11. 11.True or false: yeast 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? Which of these is what we measure? (a) the filter material (b) how clear the water is (c) the same glass (d) the same funnel
13. 13.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
14. 14.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) sugar from sugar water (c) bran from wheat flour (d) small stones from dal
15. 15.🫗 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
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a magnet
17. 17.True or false: small stones from dal is done by sieving. (a) False (b) True
18. 18.True or false: bran from wheat flour is done by sieving. (a) False (b) True
19. 19.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) cotton or cloth (d) muddy water
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) sand and pebbles (d) a balloon
22. 22.⚖️ 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 keep it the same (c) we measure it
23. 23.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) cotton or cloth (d) a mirror
25. 25.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
26. 26.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) winnowing (c) filtering (d) sieving
27. 27.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
28. 28.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) cotton or cloth (d) turmeric powder
29. 29.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
31. 31.True or false: small stones from dal is done by handpicking. (a) True (b) False
32. 32.🫗 Which of these is done by sieving? (a) small stones from dal (b) gravel from fine sand (c) salt from sea water (d) bad grains from rice
33. 33.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) bran from wheat flour (c) gravel from fine sand (d) chaff from wheat grain
36. 36.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
37. 37.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
38. 38.🫗 Which of these is done by filtering? (a) small stones from dal (b) bran from wheat flour (c) chaff from wheat grain (d) mud from water
39. 39.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a mirror (d) a clean glass
40. 40.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a battery cell (d) sand and pebbles

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