Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 613 · 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.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
2. 2.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it floats on top (d) it dissolves
3. 3.🧺 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) a magnet
4. 4.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
5. 5.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) chaff from wheat grain (c) mud from water (d) salt from sea water
6. 6.True or false: salt from sea water is done by sieving. (a) True (b) False
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
8. 8.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
9. 9.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) a magnet (d) a mirror
10. 10.🫗 How do we separate bad grains from rice? (a) sieving (b) handpicking (c) filtering (d) evaporating
11. 11.🫗 How do we separate sugar from sugar water? (a) evaporating (b) filtering (c) handpicking (d) sieving
12. 12.True or false: bran from wheat flour is done by sieving. (a) False (b) True
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the amount poured (c) how clear the water is (d) the filter material
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a balloon (c) a mirror (d) a magnet
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) yes, all of it (d) it turns to sugar
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) a funnel (d) a clean glass
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) sand and pebbles (d) cotton or cloth
18. 18.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
19. 19.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
20. 20.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) sugar from sugar water (c) gravel from fine sand (d) chaff from wheat grain
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) muddy water (c) a funnel (d) a clean glass
22. 22.⚖️ 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 filter material (d) the same funnel
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
24. 24.🫗 Which of these is done by sieving? (a) mud from water (b) chaff from wheat grain (c) bran from wheat flour (d) small stones from dal
25. 25.🫗 How do we separate small stones from dal? (a) evaporating (b) winnowing (c) sieving (d) handpicking
26. 26.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) a magnet (d) a funnel
29. 29.⚖️ 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
30. 30.True or false: salt from sea water is done by evaporating. (a) False (b) True
31. 31.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) gravel from fine sand (c) mud from water (d) chaff from wheat grain
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) muddy water (c) a funnel (d) a clean glass
33. 33.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
34. 34.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, always (d) yes, if it is clear
35. 35.True or false: salt from sea water is done by filtering. (a) False (b) True
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
37. 37.⚖️ 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 measure it (c) we change it
38. 38.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
39. 39.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) small stones from dal (c) salt from sea water (d) bran from wheat flour
40. 40.True or false: small stones from dal is done by evaporating. (a) True (b) False

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