Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 144 · 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.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
2. 2.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
3. 3.🫗 How do we separate small stones from dal? (a) evaporating (b) sieving (c) winnowing (d) handpicking
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
5. 5.True or false: bran from wheat flour is done by filtering. (a) False (b) True
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 change it (b) we keep it the same (c) we measure it
7. 7.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
8. 8.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a battery cell (d) muddy water
10. 10.True or false: small stones from dal is done by handpicking. (a) False (b) True
11. 11.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
12. 12.⚖️ 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
13. 13.🛟 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
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) cotton or cloth (d) a magnet
15. 15.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
16. 16.🫗 How do we separate tea leaves from tea? (a) filtering (b) handpicking (c) evaporating (d) sieving
17. 17.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
18. 18.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) mud from water (c) small stones from dal (d) salt from sea water
19. 19.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
20. 20.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) winnowing (d) sieving
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) cotton or cloth (d) yeast
22. 22.True or false: husk from rice grain is done by filtering. (a) True (b) False
23. 23.⚖️ 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
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
25. 25.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) tea leaves from tea (c) small stones from dal (d) gravel from fine sand
26. 26.⚖️ 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
27. 27.True or false: bran from wheat flour is done by sieving. (a) True (b) False
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a clean glass (c) cotton or cloth (d) sand and pebbles
29. 29.True or false: chaff from wheat grain is done by evaporating. (a) True (b) False
30. 30.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a mirror
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a funnel (d) muddy water
33. 33.True or false: bran from wheat flour is done by evaporating. (a) False (b) True
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a magnet (d) sand and pebbles
35. 35.🫗 How do we separate mud from water? (a) winnowing (b) evaporating (c) filtering (d) handpicking
36. 36.🫗 How do we separate chaff from wheat grain? (a) filtering (b) evaporating (c) handpicking (d) winnowing
37. 37.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
38. 38.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) tea leaves from tea (c) bran from wheat flour (d) bad grains from rice
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.🛟 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

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