Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 918 · 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.⚖️ 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) how clear the water is (c) the filter material (d) the same glass
2. 2.🔮 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
3. 3.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) chaff from wheat grain (d) mud from water
4. 4.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the amount poured
6. 6.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
7. 7.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves stay behind (d) leaves pass through
8. 8.True or false: tea leaves from tea is done by filtering. (a) True (b) False
9. 9.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) yeast (d) muddy water
11. 11.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) cotton or cloth (d) a clean glass
13. 13.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) filtering (d) winnowing
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) yeast (d) a funnel
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the amount poured (c) the same funnel (d) the filter material
16. 16.🫗 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
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 keep it the same (b) we change it (c) we measure it
18. 18.⚖️ 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
19. 19.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the salt (d) the water
20. 20.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) muddy water (d) cotton or cloth
22. 22.⚖️ 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
23. 23.⚖️ 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
24. 24.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) mud from water (c) gravel from fine sand (d) bad grains from rice
25. 25.🫗 How do we separate sugar from sugar water? (a) winnowing (b) handpicking (c) evaporating (d) filtering
26. 26.🛟 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
27. 27.True or false: small stones from dal is done by handpicking. (a) False (b) True
28. 28.⚖️ 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
29. 29.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
30. 30.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
31. 31.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
32. 32.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
34. 34.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
35. 35.🫗 How do we separate bad grains from rice? (a) evaporating (b) filtering (c) handpicking (d) winnowing
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) sand and pebbles (d) a clean glass
37. 37.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) small stones from dal (c) tea leaves from tea (d) husk from rice grain
38. 38.⚖️ 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
39. 39.🧺 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 balloon
40. 40.True or false: gravel from fine sand is done by sieving. (a) True (b) False

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