Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 868 · 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) tea leaves from tea (b) small stones from dal (c) bran from wheat flour (d) salt from sea water
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
3. 3.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
6. 6.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) sugar from sugar water (c) tea leaves from tea (d) husk from rice grain
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a battery cell (c) sand and pebbles (d) a clean glass
8. 8.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) yeast
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) cotton or cloth (d) a clean glass
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
12. 12.True or false: bad grains from rice is done by handpicking. (a) False (b) True
13. 13.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) husk from rice grain (c) salt from sea water (d) tea leaves from tea
14. 14.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) winnowing (d) evaporating
15. 15.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
17. 17.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) the salt (d) nothing
18. 18.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) handpicking (d) filtering
19. 19.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) a balloon (d) yeast
20. 20.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) tea leaves from tea (c) sugar from sugar water (d) bad grains from rice
21. 21.🔮 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
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
23. 23.🫗 How do we separate small stones from dal? (a) handpicking (b) filtering (c) evaporating (d) sieving
24. 24.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
25. 25.🫗 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
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a clean glass (d) a magnet
27. 27.🫗 Which of these is done by filtering? (a) small stones from dal (b) bad grains from rice (c) mud from water (d) chaff from wheat grain
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) sand and pebbles (d) a clean glass
29. 29.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
30. 30.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
31. 31.⚖️ 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 measure it (c) we change it
32. 32.🫗 How do we separate mud from water? (a) sieving (b) handpicking (c) evaporating (d) filtering
33. 33.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
34. 34.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) muddy water (c) a battery cell (d) a mirror
35. 35.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) no, germs may stay (d) yes, always
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a clean glass (d) a balloon
37. 37.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) small stones from dal (c) husk from rice grain (d) tea leaves from tea
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the filter material (c) the same funnel (d) how clear the water is
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a magnet (d) cotton or cloth
40. 40.True or false: small stones from dal is done by winnowing. (a) True (b) False

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