Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 86 · 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: sand and pebbles is needed for the muddy water filter. (a) True (b) False
2. 2.⚖️ 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
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
4. 4.🫗 How do we separate chaff from wheat grain? (a) filtering (b) evaporating (c) handpicking (d) winnowing
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) yeast
6. 6.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a clean glass (c) muddy water (d) cotton or cloth
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a battery cell (d) cotton or cloth
10. 10.🫗 How do we separate bad grains from rice? (a) handpicking (b) winnowing (c) sieving (d) evaporating
11. 11.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) turmeric powder (d) a mirror
12. 12.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is hot (d) clear water is sweet
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) a magnet (d) muddy water
14. 14.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
15. 15.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
16. 16.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
17. 17.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
18. 18.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
19. 19.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is cold (d) yes, if it is clear
20. 20.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.⚖️ 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 measure it (b) we keep it the same (c) we change it
23. 23.🫗 How do we separate husk from rice grain? (a) sieving (b) evaporating (c) winnowing (d) handpicking
24. 24.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
25. 25.⚖️ 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 muddy water (b) the same glass (c) the filter material (d) the same funnel
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) yeast (d) cotton or cloth
27. 27.🫗 Which of these is done by filtering? (a) bad grains from rice (b) sugar from sugar water (c) tea leaves from tea (d) husk from rice grain
28. 28.🫗 How do we separate salt from sea water? (a) sieving (b) winnowing (c) evaporating (d) handpicking
29. 29.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
30. 30.True or false: tea leaves from tea is done by sieving. (a) True (b) False
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) a battery cell
32. 32.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
33. 33.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bran from wheat flour (c) small stones from dal (d) salt from sea water
34. 34.True or false: tea leaves from tea is done by filtering. (a) False (b) True
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) a funnel (d) a clean glass
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
37. 37.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) cotton or cloth (d) a funnel
39. 39.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
40. 40.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed

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