Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 319 · 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.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) mud from water (c) small stones from dal (d) husk from rice grain
2. 2.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) a funnel (d) a clean glass
4. 4.⚖️ 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 funnel (b) the same glass (c) the amount poured (d) the filter material
5. 5.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
6. 6.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
7. 7.⚖️ 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 keep it the same (b) we change it (c) we measure it
8. 8.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) turmeric powder (d) a clean glass
10. 10.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same funnel (c) how clear the water is
12. 12.True or false: sand and pebbles is not needed for the muddy water filter. (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) the filter material (d) how clear the water is
14. 14.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter traps mud (d) the filter adds soap
15. 15.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) muddy water (d) cotton or cloth
17. 17.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) salt from sea water (c) gravel from fine sand (d) bran from wheat flour
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
19. 19.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) a mirror (d) sand and pebbles
21. 21.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
23. 23.🫗 How do we separate mud from water? (a) winnowing (b) handpicking (c) sieving (d) filtering
24. 24.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
25. 25.True or false: mud from water is done by filtering. (a) False (b) True
26. 26.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it sinks to the bottom (d) it floats on top
27. 27.🫗 How do we separate husk from rice grain? (a) evaporating (b) sieving (c) handpicking (d) winnowing
28. 28.🫗 Which of these is done by sieving? (a) small stones from dal (b) salt from sea water (c) bran from wheat flour (d) sugar from sugar water
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 change it (b) we measure it (c) we keep it the same
30. 30.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
31. 31.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
32. 32.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
33. 33.True or false: tea leaves from tea is done by filtering. (a) False (b) True
34. 34.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) sieving (c) handpicking (d) evaporating
35. 35.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
36. 36.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
37. 37.⚖️ 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
38. 38.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
39. 39.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bad grains from rice (c) mud from water (d) husk from rice grain
40. 40.🛟 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

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