Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 224 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
2. 2.🔮 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
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a magnet (d) a funnel
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) yeast (d) cotton or cloth
5. 5.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) a clean glass (d) yeast
8. 8.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
9. 9.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
10. 10.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
12. 12.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
13. 13.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, always (d) yes, if it is clear
14. 14.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
15. 15.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
16. 16.⚖️ 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
17. 17.🛟 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
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same muddy water (c) how clear the water is (d) the filter material
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) sand and pebbles (d) cotton or cloth
23. 23.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
24. 24.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
25. 25.🫗 Which of these is done by handpicking? (a) small stones from dal (b) chaff from wheat grain (c) salt from sea water (d) sugar from sugar water
26. 26.🫗 How do we separate husk from rice grain? (a) winnowing (b) evaporating (c) sieving (d) filtering
27. 27.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) a mirror (d) muddy water
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same glass (c) the filter material (d) the same funnel
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a clean glass (d) turmeric powder
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) yeast (c) a battery cell (d) turmeric powder
33. 33.🫗 Which of these is done by sieving? (a) salt from sea water (b) bad grains from rice (c) sugar from sugar water (d) bran from wheat flour
34. 34.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
35. 35.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
36. 36.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
37. 37.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
38. 38.True or false: small stones from dal is done by handpicking. (a) False (b) True
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.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) evaporating (d) winnowing

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