Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 645 · 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 same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) a battery cell (d) a clean glass
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) turmeric powder
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a funnel (d) turmeric powder
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.True or false: mud from water is done by filtering. (a) False (b) True
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) muddy water (d) cotton or cloth
8. 8.🫗 How do we separate mud from water? (a) sieving (b) evaporating (c) filtering (d) handpicking
9. 9.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
11. 11.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) bad grains from rice (c) salt from sea water (d) bran from wheat flour
12. 12.True or false: salt from sea water is done by handpicking. (a) False (b) True
13. 13.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the salt (d) the water
14. 14.🫗 How do we separate bran from wheat flour? (a) handpicking (b) winnowing (c) evaporating (d) sieving
15. 15.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) clearer (d) hot
16. 16.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) chaff from wheat grain (c) small stones from dal (d) gravel from fine sand
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) False (b) True
18. 18.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
19. 19.🫗 How do we separate salt from sea water? (a) filtering (b) winnowing (c) handpicking (d) evaporating
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a battery cell (d) muddy water
21. 21.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
22. 22.True or false: small stones from dal is done by winnowing. (a) True (b) False
23. 23.True or false: tea leaves from tea is done by filtering. (a) True (b) False
24. 24.🫗 Which of these is done by filtering? (a) small stones from dal (b) sugar from sugar water (c) tea leaves from tea (d) salt from sea water
25. 25.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
26. 26.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it sinks to the bottom (d) it dissolves
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
29. 29.🫗 How do we separate chaff from wheat grain? (a) sieving (b) filtering (c) winnowing (d) evaporating
30. 30.True or false: sugar from sugar water is done by sieving. (a) False (b) True
31. 31.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
33. 33.True or false: mud from water is done by sieving. (a) False (b) True
34. 34.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) bran from wheat flour (c) tea leaves from tea (d) sugar from sugar water
35. 35.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) yeast (d) muddy water
38. 38.True or false: salt from sea water is done by evaporating. (a) False (b) True
39. 39.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) it turns to sand (d) yes, all of it
40. 40.🫗 How do we separate small stones from dal? (a) filtering (b) handpicking (c) sieving (d) evaporating

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