Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 474 · 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 not needed for the muddy water filter? (a) a funnel (b) a mirror (c) cotton or cloth (d) sand and pebbles
2. 2.⚖️ 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
3. 3.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) tea leaves from tea (c) husk from rice grain (d) mud from water
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
5. 5.⚖️ 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
6. 6.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a funnel (d) sand and pebbles
7. 7.🫗 Which of these is done by handpicking? (a) mud from water (b) chaff from wheat grain (c) bran from wheat flour (d) small stones from dal
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the same glass
9. 9.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
10. 10.True or false: gravel from fine sand is done by sieving. (a) False (b) True
11. 11.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) muddy water (c) a clean glass (d) a funnel
13. 13.🛟 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
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) sand and pebbles (d) a clean glass
15. 15.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) filtering (d) handpicking
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 measure it (b) we change it (c) we keep it the same
17. 17.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) winnowing (d) sieving
18. 18.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bad grains from rice (c) gravel from fine sand (d) husk from rice grain
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) turmeric powder (d) cotton or cloth
20. 20.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
21. 21.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
22. 22.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) yes, all of it (d) it turns to sugar
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a magnet (c) a mirror (d) a battery cell
24. 24.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
25. 25.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
26. 26.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
27. 27.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
28. 28.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a magnet (d) muddy water
30. 30.⚖️ 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) False (b) True
31. 31.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
32. 32.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
33. 33.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
34. 34.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
35. 35.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
36. 36.🫗 How do we separate tea leaves from tea? (a) sieving (b) winnowing (c) filtering (d) evaporating
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) yeast (d) a clean glass
38. 38.🫗 Which of these is done by evaporating? (a) small stones from dal (b) husk from rice grain (c) sugar from sugar water (d) bran from wheat flour
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) sand and pebbles (c) turmeric powder (d) a battery cell
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a funnel (c) muddy water (d) a clean glass

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