Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 513 · 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.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
3. 3.🧺 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 funnel (d) a mirror
4. 4.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
5. 5.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the filter adds soap (d) the mud dissolves
6. 6.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
7. 7.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
8. 8.🫗 Which of these is done by filtering? (a) mud from water (b) small stones from dal (c) salt from sea water (d) bad grains from rice
9. 9.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
10. 10.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the filter material (c) the same funnel (d) the same glass
12. 12.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a clean glass (d) a mirror
13. 13.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
15. 15.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
16. 16.🫗 How do we separate bad grains from rice? (a) handpicking (b) filtering (c) evaporating (d) winnowing
17. 17.⚖️ 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 change it (c) we keep it the same
18. 18.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) yeast (d) a battery cell
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
20. 20.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) chaff from wheat grain (c) bad grains from rice (d) tea leaves from tea
21. 21.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
22. 22.⚖️ 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
23. 23.⚖️ 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) how clear the water is (c) the same muddy water (d) the filter material
24. 24.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
25. 25.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) bad grains from rice (c) gravel from fine sand (d) husk from rice grain
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a magnet
27. 27.🫗 How do we separate salt from sea water? (a) filtering (b) sieving (c) evaporating (d) winnowing
28. 28.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
29. 29.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) tea leaves from tea (c) chaff from wheat grain (d) salt from sea water
30. 30.⚖️ 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 measure it (c) we keep it the same
31. 31.🔮 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
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) yeast (d) a clean glass
33. 33.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
35. 35.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) small stones from dal (c) bad grains from rice (d) mud from water
36. 36.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) winnowing (d) filtering
37. 37.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) yes, all of it (d) no, salt passes through
38. 38.🫗 How do we separate tea leaves from tea? (a) sieving (b) handpicking (c) evaporating (d) filtering
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) a mirror (d) a magnet
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a funnel (c) muddy water (d) cotton or cloth

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