Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 886 · 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: tea leaves from tea is done by filtering. (a) True (b) False
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) a balloon
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
4. 4.⚖️ 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 change it (c) we measure it
5. 5.⚖️ 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
6. 6.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
9. 9.🛟 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
10. 10.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) yes, all of it (d) no, salt passes through
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) yeast (d) muddy water
12. 12.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) sieving (d) filtering
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is salty (d) clear water is hot
15. 15.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) turmeric powder (d) a battery cell
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a funnel (c) a clean glass (d) sand and pebbles
18. 18.⚖️ 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) True (b) False
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the same glass (d) the same funnel
20. 20.🫗 Which of these is done by sieving? (a) small stones from dal (b) bad grains from rice (c) husk from rice grain (d) gravel from fine sand
21. 21.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
22. 22.🫗 How do we separate husk from rice grain? (a) winnowing (b) handpicking (c) filtering (d) sieving
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) sand and pebbles (d) a battery cell
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the amount poured (c) how clear the water is (d) the same funnel
25. 25.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
26. 26.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
27. 27.⚖️ 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
28. 28.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) turmeric powder (d) sand and pebbles
30. 30.⚖️ 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
31. 31.🫗 How do we separate tea leaves from tea? (a) evaporating (b) winnowing (c) handpicking (d) filtering
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
33. 33.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
34. 34.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) evaporating (d) sieving
35. 35.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
36. 36.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
37. 37.True or false: salt from sea water is done by winnowing. (a) False (b) True
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🔮 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
40. 40.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed

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