Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 819 · 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.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
3. 3.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) winnowing (d) filtering
4. 4.⚖️ 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 measure it (b) we change it (c) we keep it the same
5. 5.True or false: small stones from dal is done by evaporating. (a) True (b) False
6. 6.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a clean glass (d) muddy water
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) muddy water (d) a clean glass
8. 8.⚖️ 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
9. 9.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
10. 10.🧺 Do we need yeast 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? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.True or false: a mirror is not needed for the muddy water filter. (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 measure it (b) we keep it the same (c) we change it
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a clean glass (d) a battery cell
15. 15.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) a magnet (d) a funnel
17. 17.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) bad grains from rice (c) chaff from wheat grain (d) salt from sea water
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) yeast (d) a clean glass
19. 19.True or false: small stones from dal is done by sieving. (a) False (b) True
20. 20.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
22. 22.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a magnet (d) a funnel
25. 25.True or false: salt from sea water is done by handpicking. (a) True (b) False
26. 26.🫗 How do we separate gravel from fine sand? (a) evaporating (b) handpicking (c) winnowing (d) sieving
27. 27.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
28. 28.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a mirror (d) a clean glass
30. 30.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) muddy water (d) turmeric powder
32. 32.True or false: bran from wheat flour is done by sieving. (a) False (b) True
33. 33.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) winnowing (d) filtering
34. 34.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
35. 35.⚖️ 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 funnel
36. 36.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) tea leaves from tea (c) salt from sea water (d) small stones from dal
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) how clear the water is (c) the same muddy water (d) the filter material
38. 38.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False

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