Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 57 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) turmeric powder (c) muddy water (d) a funnel
4. 4.🫗 How do we separate gravel from fine sand? (a) winnowing (b) handpicking (c) evaporating (d) sieving
5. 5.True or false: salt from sea water is done by evaporating. (a) False (b) True
6. 6.True or false: husk from rice grain is done by filtering. (a) False (b) True
7. 7.True or false: small stones from dal is done by filtering. (a) False (b) True
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
9. 9.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) bad grains from rice (c) salt from sea water (d) mud from water
10. 10.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
11. 11.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
13. 13.True or false: tea leaves from tea is done by filtering. (a) False (b) True
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
15. 15.⚖️ 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
16. 16.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
17. 17.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
18. 18.True or false: bad grains from rice is done by sieving. (a) False (b) True
19. 19.⚖️ 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 change it (c) we measure it
20. 20.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a balloon (d) muddy water
22. 22.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
23. 23.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet
24. 24.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bran from wheat flour (c) gravel from fine sand (d) bad grains from rice
25. 25.True or false: small stones from dal is done by sieving. (a) True (b) False
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a magnet (d) cotton or cloth
29. 29.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) filtering (d) sieving
30. 30.True or false: bad grains from rice is done by handpicking. (a) True (b) False
31. 31.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
32. 32.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
33. 33.🫗 How do we separate bad grains from rice? (a) evaporating (b) sieving (c) handpicking (d) winnowing
34. 34.🔍 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 dissolves (d) it floats on top
35. 35.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
36. 36.🫗 Which of these is done by sieving? (a) salt from sea water (b) gravel from fine sand (c) bad grains from rice (d) husk from rice grain
37. 37.🫗 Which of these is done by sieving? (a) mud from water (b) salt from sea water (c) husk from rice grain (d) bran from wheat flour
38. 38.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a clean glass (d) a battery cell
40. 40.🫗 How do we separate sugar from sugar water? (a) sieving (b) evaporating (c) winnowing (d) filtering

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