Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 453 · 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 sieving? (a) small stones from dal (b) bran from wheat flour (c) chaff from wheat grain (d) bad grains from rice
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) yeast (d) muddy water
3. 3.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) yeast (d) a funnel
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind
6. 6.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
7. 7.True or false: bad grains from rice is done by sieving. (a) False (b) True
8. 8.🛟 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
9. 9.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
10. 10.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) a funnel (d) a balloon
12. 12.True or false: mud from water is done by filtering. (a) False (b) True
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a magnet (d) a balloon
15. 15.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) the salt (d) nothing
17. 17.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) gravel from fine sand (c) sugar from sugar water (d) bran from wheat flour
18. 18.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) a mirror (d) sand and pebbles
20. 20.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) evaporating (d) filtering
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.🫗 How do we separate gravel from fine sand? (a) filtering (b) sieving (c) winnowing (d) handpicking
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a clean glass (c) turmeric powder (d) a battery cell
24. 24.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is salty (d) clear water is hot
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) a battery cell
27. 27.⚖️ 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 filter material (c) how clear the water is (d) the same muddy water
28. 28.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a balloon (d) cotton or cloth
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.🫗 How do we separate husk from rice grain? (a) winnowing (b) filtering (c) handpicking (d) sieving
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) cotton or cloth (d) a funnel
35. 35.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) mud from water (c) bran from wheat flour (d) husk from rice grain
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
37. 37.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) sand and pebbles (d) a battery cell
39. 39.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
40. 40.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through

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