Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 715 · 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: cotton or cloth is 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 sinks to the bottom (b) it dissolves (c) it floats on top (d) it turns to sand
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) sand and pebbles (d) a magnet
4. 4.🫗 Which of these is done by evaporating? (a) mud from water (b) gravel from fine sand (c) bad grains from rice (d) salt from sea water
5. 5.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
6. 6.🫗 How do we separate salt from sea water? (a) handpicking (b) winnowing (c) filtering (d) evaporating
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) turmeric powder (d) a funnel
9. 9.True or false: bran from wheat flour is done by sieving. (a) True (b) False
10. 10.🧺 Do we need a funnel 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? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the same glass
12. 12.⚖️ 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) how clear the water is (c) the amount poured (d) the filter material
13. 13.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) leaves pass through (d) tea stays behind
14. 14.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
15. 15.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) a battery cell (d) muddy water
16. 16.⚖️ 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
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) turmeric powder (d) a clean glass
18. 18.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
19. 19.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) chaff from wheat grain (c) small stones from dal (d) mud from water
20. 20.🫗 How do we separate sugar from sugar water? (a) evaporating (b) sieving (c) handpicking (d) filtering
21. 21.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
22. 22.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) small stones from dal (c) bran from wheat flour (d) chaff from wheat grain
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
24. 24.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
25. 25.True or false: tea leaves from tea is done by filtering. (a) False (b) True
26. 26.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
27. 27.True or false: salt from sea water is done by evaporating. (a) False (b) True
28. 28.True or false: mud from water is done by filtering. (a) False (b) True
29. 29.🫗 Which of these is done by sieving? (a) bad grains from rice (b) gravel from fine sand (c) mud from water (d) salt from sea water
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) muddy water (d) cotton or cloth
32. 32.True or false: husk from rice grain is done by handpicking. (a) False (b) True
33. 33.🫗 How do we separate small stones from dal? (a) sieving (b) winnowing (c) evaporating (d) handpicking
34. 34.🔮 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
35. 35.True or false: bad grains from rice is done by handpicking. (a) True (b) False
36. 36.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) winnowing (d) evaporating
37. 37.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) tea leaves from tea (c) salt from sea water (d) bran from wheat flour
38. 38.🔮 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
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
40. 40.🫗 Which of these is done by evaporating? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) gravel from fine sand

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