Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 665 · 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: sugar from sugar water is done by evaporating. (a) True (b) False
2. 2.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
3. 3.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
4. 4.⚖️ 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
5. 5.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
6. 6.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
7. 7.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
8. 8.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a clean glass (d) turmeric powder
11. 11.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
12. 12.⚖️ 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) False (b) True
13. 13.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
14. 14.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
18. 18.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a mirror (c) yeast (d) a magnet
20. 20.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
21. 21.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
22. 22.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
23. 23.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a mirror (d) muddy water
25. 25.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
26. 26.⚖️ 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 same funnel
27. 27.⚖️ 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
28. 28.True or false: small stones from dal is done by handpicking. (a) False (b) True
29. 29.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
30. 30.🫗 Which of these is done by handpicking? (a) mud from water (b) small stones from dal (c) bran from wheat flour (d) gravel from fine sand
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) turmeric powder (d) sand and pebbles
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) a battery cell (d) muddy water
33. 33.🫗 How do we separate gravel from fine sand? (a) handpicking (b) winnowing (c) filtering (d) sieving
34. 34.⚖️ 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) True (b) False
35. 35.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sugar (d) it turns to sand
36. 36.⚖️ 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
37. 37.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) mud from water (c) small stones from dal (d) tea leaves from tea
38. 38.🫗 How do we separate mud from water? (a) evaporating (b) filtering (c) sieving (d) handpicking
39. 39.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
40. 40.⚖️ 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 filter material (d) the same glass

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