Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 627 · 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 winnowing? (a) bad grains from rice (b) chaff from wheat grain (c) small stones from dal (d) bran from wheat flour
2. 2.⚖️ 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
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
4. 4.🔮 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
5. 5.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
6. 6.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
7. 7.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) sugar from sugar water (c) chaff from wheat grain (d) husk from rice grain
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (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 clean glass for the muddy water filter? (a) not needed (b) needed
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a mirror (d) a funnel
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) muddy water (d) turmeric powder
13. 13.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) husk from rice grain (c) salt from sea water (d) small stones from dal
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) a clean glass (d) sand and pebbles
16. 16.🛟 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
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a funnel (c) sand and pebbles (d) muddy water
18. 18.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
19. 19.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
20. 20.⚖️ 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 muddy water
21. 21.🫗 How do we separate bran from wheat flour? (a) winnowing (b) handpicking (c) evaporating (d) sieving
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) a balloon (d) a battery cell
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) yeast (c) a magnet (d) a balloon
24. 24.⚖️ 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 measure it (c) we change it
25. 25.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) mud from water (c) tea leaves from tea (d) gravel from fine sand
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a balloon (d) a clean glass
27. 27.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
28. 28.🔮 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
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 winnowing? (a) gravel from fine sand (b) mud from water (c) husk from rice grain (d) salt from sea water
31. 31.True or false: mud from water is done by filtering. (a) False (b) True
32. 32.⚖️ 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
33. 33.🫗 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
34. 34.⚖️ 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) False (b) True
35. 35.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
36. 36.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) yes, always (d) no, germs may stay
37. 37.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
38. 38.🫗 How do we separate small stones from dal? (a) winnowing (b) evaporating (c) sieving (d) handpicking
39. 39.⚖️ 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
40. 40.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True

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