Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 857 · 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 keep it the same (b) we measure it (c) we change it
2. 2.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
3. 3.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
4. 4.🫗 Which of these is done by evaporating? (a) salt from sea water (b) tea leaves from tea (c) bad grains from rice (d) gravel from fine sand
5. 5.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
6. 6.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) a balloon (d) sand and pebbles
8. 8.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
11. 11.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it floats on top (d) it dissolves
12. 12.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
13. 13.🫗 How do we separate husk from rice grain? (a) winnowing (b) handpicking (c) evaporating (d) filtering
14. 14.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) sieving (d) handpicking
15. 15.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
16. 16.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) chaff from wheat grain (c) husk from rice grain (d) mud from water
17. 17.⚖️ 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 change it (b) we keep it the same (c) we measure it
18. 18.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
20. 20.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a magnet (d) a mirror
21. 21.🫗 How do we separate gravel from fine sand? (a) winnowing (b) handpicking (c) evaporating (d) sieving
22. 22.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) salt from sea water (c) tea leaves from tea (d) sugar from sugar water
23. 23.True or false: bad grains from rice is done by handpicking. (a) False (b) True
24. 24.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
25. 25.True or false: mud from water is done by filtering. (a) False (b) True
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) muddy water (d) a battery cell
27. 27.⚖️ 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
28. 28.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
29. 29.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) yeast (d) sand and pebbles
31. 31.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a balloon (d) cotton or cloth
33. 33.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
34. 34.True or false: bad grains from rice is done by filtering. (a) False (b) True
35. 35.True or false: mud from water is done by winnowing. (a) False (b) True
36. 36.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
37. 37.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) evaporating (c) filtering (d) handpicking
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) cotton or cloth (d) a funnel
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) cotton or cloth (c) muddy water (d) a clean glass
40. 40.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) bad grains from rice (c) small stones from dal (d) sugar from sugar water

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