Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 178 · 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 a clean glass for the muddy water filter? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a magnet (d) sand and pebbles
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
4. 4.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it sinks to the bottom (d) it turns to sand
5. 5.🫗 How do we separate sugar from sugar water? (a) evaporating (b) winnowing (c) sieving (d) handpicking
6. 6.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
8. 8.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
9. 9.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
10. 10.🔮 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
11. 11.🫗 How do we separate tea leaves from tea? (a) sieving (b) filtering (c) handpicking (d) winnowing
12. 12.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
13. 13.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a mirror (d) sand and pebbles
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) cotton or cloth (d) a battery cell
15. 15.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
16. 16.⚖️ 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
17. 17.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a funnel (c) cotton or cloth (d) sand and pebbles
19. 19.🫗 Which of these is done by sieving? (a) small stones from dal (b) chaff from wheat grain (c) tea leaves from tea (d) gravel from fine sand
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) muddy water (d) cotton or cloth
21. 21.⚖️ 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) the same muddy water (c) how clear the water is
22. 22.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
23. 23.True or false: a funnel is not needed for the muddy water filter. (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) how clear the water is (b) the same glass (c) the same muddy water (d) the same funnel
25. 25.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) a battery cell (d) a clean glass
27. 27.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) tea leaves from tea (c) gravel from fine sand (d) bad grains from rice
31. 31.⚖️ 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 change it (c) we keep it the same
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
33. 33.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
34. 34.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
35. 35.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) sieving (d) evaporating
36. 36.True or false: small stones from dal is done by handpicking. (a) True (b) False
37. 37.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
38. 38.⚖️ 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) True (b) False
39. 39.🧺 Do we need a funnel 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? True or false: the same glass is kept the same. (a) False (b) True

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