Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 891 · 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) bad grains from rice (b) gravel from fine sand (c) sugar from sugar water (d) chaff from wheat grain
2. 2.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
3. 3.True or false: bad grains from rice is done by sieving. (a) False (b) True
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
5. 5.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) gravel from fine sand (c) bad grains from rice (d) mud from water
6. 6.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a mirror (c) cotton or cloth (d) a clean glass
8. 8.True or false: small stones from dal is done by handpicking. (a) True (b) False
9. 9.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a balloon (d) a funnel
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) yeast (c) muddy water (d) a clean glass
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a battery cell (d) sand and pebbles
13. 13.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
14. 14.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) yes, all of it (d) it turns to sugar
16. 16.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
17. 17.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
18. 18.🛟 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
19. 19.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
21. 21.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
22. 22.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) tea leaves from tea (c) gravel from fine sand (d) chaff from wheat grain
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) turmeric powder (d) a clean glass
24. 24.🫗 How do we separate salt from sea water? (a) sieving (b) winnowing (c) handpicking (d) evaporating
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) turmeric powder (d) a funnel
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) turmeric powder (d) muddy water
27. 27.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
28. 28.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
29. 29.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a mirror (c) cotton or cloth (d) muddy water
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
33. 33.🫗 How do we separate husk from rice grain? (a) sieving (b) evaporating (c) winnowing (d) filtering
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
37. 37.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
38. 38.🫗 Which of these is done by sieving? (a) bad grains from rice (b) bran from wheat flour (c) tea leaves from tea (d) salt from sea water
39. 39.True or false: husk from rice grain is done by winnowing. (a) True (b) False
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a clean glass (d) a magnet

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