Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 311 · 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) husk from rice grain (b) bad grains from rice (c) sugar from sugar water (d) mud from water
2. 2.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) small stones from dal (c) tea leaves from tea (d) sugar from sugar water
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) yes, all of it (d) it turns to sand
4. 4.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
5. 5.🫗 Which of these is done by sieving? (a) salt from sea water (b) tea leaves from tea (c) gravel from fine sand (d) sugar from sugar water
6. 6.⚖️ 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 change it (c) we keep it the same
7. 7.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
8. 8.⚖️ 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) False (b) True
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) muddy water (d) a magnet
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the same glass (d) the amount poured
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a balloon (d) sand and pebbles
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) a magnet (d) a balloon
13. 13.True or false: gravel from fine sand is done by sieving. (a) False (b) True
14. 14.🫗 How do we separate mud from water? (a) handpicking (b) winnowing (c) filtering (d) evaporating
15. 15.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
17. 17.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) muddy water (d) a funnel
20. 20.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
21. 21.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) small stones from dal (c) husk from rice grain (d) salt from sea water
22. 22.True or false: small stones from dal is done by handpicking. (a) True (b) False
23. 23.True or false: husk from rice grain is done by sieving. (a) True (b) False
24. 24.⚖️ 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 same funnel (d) the same muddy water
25. 25.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
28. 28.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the salt (d) the water
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) sand and pebbles (d) a balloon
30. 30.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) filtering (d) handpicking
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
33. 33.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
34. 34.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
35. 35.🫗 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
36. 36.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
37. 37.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) cotton or cloth (d) a battery cell
38. 38.🫗 How do we separate gravel from fine sand? (a) sieving (b) evaporating (c) handpicking (d) filtering
39. 39.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bad grains from rice (c) husk from rice grain (d) tea leaves from tea
40. 40.🫗 Which of these is done by evaporating? (a) mud from water (b) chaff from wheat grain (c) salt from sea water (d) small stones from dal

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