Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 752 · 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? True or false: the filter material is what we measure. (a) True (b) False
2. 2.🔮 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
3. 3.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
4. 4.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) winnowing (d) handpicking
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a clean glass (d) muddy water
6. 6.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
7. 7.⚖️ 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 glass (c) how clear the water is (d) the same muddy water
8. 8.True or false: bad grains from rice is done by handpicking. (a) False (b) True
9. 9.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
10. 10.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) cotton or cloth (d) muddy water
12. 12.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
13. 13.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) evaporating (d) handpicking
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) a funnel (d) sand and pebbles
16. 16.🫗 How do we separate mud from water? (a) filtering (b) sieving (c) evaporating (d) handpicking
17. 17.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
18. 18.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
19. 19.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) muddier (d) clearer
20. 20.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
21. 21.True or false: small stones from dal is done by handpicking. (a) True (b) False
22. 22.🫗 How do we separate small stones from dal? (a) sieving (b) evaporating (c) filtering (d) handpicking
23. 23.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) tea leaves from tea (c) salt from sea water (d) gravel from fine sand
24. 24.⚖️ 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
25. 25.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
26. 26.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
28. 28.True or false: mud from water is done by handpicking. (a) False (b) True
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same muddy water (c) the filter material (d) how clear the water is
30. 30.🫗 How do we separate sugar from sugar water? (a) winnowing (b) sieving (c) handpicking (d) evaporating
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) yeast (d) sand and pebbles
33. 33.⚖️ 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 funnel (c) how clear the water is
34. 34.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
35. 35.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
37. 37.🫗 Which of these is done by sieving? (a) husk from rice grain (b) salt from sea water (c) gravel from fine sand (d) small stones from dal
38. 38.⚖️ 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) True (b) False
39. 39.⚖️ 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) the filter material (c) how clear the water is
40. 40.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the filter adds soap (d) the water evaporates

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