Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 713 · 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: husk from rice grain is done by evaporating. (a) False (b) True
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) yeast (d) sand and pebbles
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
4. 4.True or false: gravel from fine sand is done by winnowing. (a) False (b) True
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
6. 6.🫗 How do we separate small stones from dal? (a) sieving (b) filtering (c) handpicking (d) winnowing
7. 7.🫗 How do we separate salt from sea water? (a) handpicking (b) winnowing (c) filtering (d) evaporating
8. 8.True or false: small stones from dal is done by handpicking. (a) False (b) True
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) turmeric powder (d) a clean glass
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
13. 13.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) gravel from fine sand (c) chaff from wheat grain (d) small stones from dal
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) sugar from sugar water (d) salt from sea water
17. 17.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
18. 18.🔮 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) no, salt passes through (d) it turns to sand
19. 19.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) a mirror (d) a battery cell
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
21. 21.⚖️ 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) False (b) True
22. 22.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
23. 23.⚖️ 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
24. 24.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) muddy water (d) a funnel
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) a balloon (d) a clean glass
28. 28.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
29. 29.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) sand and pebbles (c) cotton or cloth (d) muddy water
31. 31.🫗 Which of these is done by handpicking? (a) salt from sea water (b) tea leaves from tea (c) sugar from sugar water (d) bad grains from rice
32. 32.🫗 How do we separate bad grains from rice? (a) handpicking (b) winnowing (c) filtering (d) sieving
33. 33.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
34. 34.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) a mirror (d) yeast
35. 35.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) husk from rice grain (c) mud from water (d) tea leaves from tea
36. 36.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a funnel (c) cotton or cloth (d) muddy water
38. 38.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
39. 39.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
40. 40.🫗 Which of these is done by evaporating? (a) salt from sea water (b) small stones from dal (c) bad grains from rice (d) tea leaves from tea

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