Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 481 · 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.⚖️ 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 change it (c) we measure it
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a battery cell (c) cotton or cloth (d) muddy water
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a magnet (d) muddy water
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same glass (c) how clear the water is (d) the same muddy water
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) tea leaves from tea (c) salt from sea water (d) bad grains from rice
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) a mirror (d) a balloon
8. 8.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
9. 9.🔮 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
10. 10.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) filtering (d) evaporating
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) muddy water (d) yeast
12. 12.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
15. 15.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) cotton or cloth (d) a balloon
17. 17.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) gravel from fine sand (c) salt from sea water (d) mud from water
20. 20.⚖️ 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
21. 21.True or false: small stones from dal is done by evaporating. (a) False (b) True
22. 22.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
23. 23.⚖️ 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) True (b) False
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a balloon (d) cotton or cloth
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) a funnel (d) a clean glass
26. 26.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
27. 27.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) sieving (d) winnowing
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a funnel (d) a mirror
29. 29.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
30. 30.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) sand and pebbles (d) muddy water
32. 32.True or false: salt from sea water is done by evaporating. (a) False (b) True
33. 33.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
34. 34.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
35. 35.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) bad grains from rice (c) husk from rice grain (d) small stones from dal
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same glass (b) the same muddy water (c) the amount poured (d) the filter material
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
38. 38.🫗 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
39. 39.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) muddy water (d) a balloon

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