Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 412 · 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.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) gravel from fine sand (c) bran from wheat flour (d) small stones from dal
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a balloon (d) sand and pebbles
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a funnel (d) a mirror
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
6. 6.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
7. 7.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
8. 8.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bad grains from rice (c) husk from rice grain (d) gravel from fine sand
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a balloon (d) a funnel
10. 10.⚖️ 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
11. 11.🔮 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
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) muddy water (d) a funnel
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) muddy water (c) a mirror (d) a balloon
14. 14.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
15. 15.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a battery cell (d) a balloon
16. 16.⚖️ 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
17. 17.True or false: salt from sea water is done by evaporating. (a) True (b) False
18. 18.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
19. 19.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) sugar from sugar water (c) husk from rice grain (d) mud from water
20. 20.🫗 Which of these is done by sieving? (a) bad grains from rice (b) husk from rice grain (c) gravel from fine sand (d) salt from sea water
21. 21.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
22. 22.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) filtering (d) evaporating
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) cotton or cloth (d) muddy water
24. 24.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) the salt (d) nothing
25. 25.⚖️ 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
26. 26.🫗 How do we separate bran from wheat flour? (a) evaporating (b) filtering (c) handpicking (d) sieving
27. 27.⚖️ 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) the amount poured (c) how clear the water is (d) the filter material
28. 28.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
29. 29.True or false: husk from rice grain is done by filtering. (a) False (b) True
30. 30.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) winnowing (d) filtering
31. 31.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
33. 33.True or false: bad grains from rice is done by filtering. (a) False (b) True
34. 34.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) bran from wheat flour (c) gravel from fine sand (d) sugar from sugar water
35. 35.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
36. 36.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
37. 37.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) bad grains from rice (c) bran from wheat flour (d) mud from water
38. 38.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
39. 39.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
40. 40.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False

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