Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 120 · 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.⚖️ 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 change it (c) we keep it the same
2. 2.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
3. 3.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
4. 4.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) yeast (c) muddy water (d) cotton or cloth
6. 6.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
8. 8.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
9. 9.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bad grains from rice (c) bran from wheat flour (d) mud from water
10. 10.⚖️ 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
11. 11.⚖️ 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 change it (b) we measure it (c) we keep it the same
12. 12.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
13. 13.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) husk from rice grain (c) mud from water (d) bran from wheat flour
14. 14.🫗 How do we separate bran from wheat flour? (a) winnowing (b) handpicking (c) sieving (d) evaporating
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the filter material (c) the same muddy water (d) the amount poured
16. 16.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) a mirror (d) a clean glass
17. 17.🫗 How do we separate small stones from dal? (a) sieving (b) filtering (c) handpicking (d) winnowing
18. 18.⚖️ 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 measure it (c) we change it
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
20. 20.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.🫗 How do we separate husk from rice grain? (a) filtering (b) winnowing (c) handpicking (d) evaporating
23. 23.🔮 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
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) muddy water (c) sand and pebbles (d) a clean glass
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
26. 26.⚖️ 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
27. 27.🫗 How do we separate salt from sea water? (a) winnowing (b) sieving (c) evaporating (d) handpicking
28. 28.⚖️ 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) how clear the water is (d) the same funnel
29. 29.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
30. 30.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) a funnel (d) muddy water
32. 32.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
33. 33.🫗 Which of these is done by sieving? (a) mud from water (b) bran from wheat flour (c) small stones from dal (d) husk from rice grain
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a funnel (c) a clean glass (d) muddy water
35. 35.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) a funnel (d) turmeric powder
36. 36.🫗 How do we separate tea leaves from tea? (a) evaporating (b) handpicking (c) filtering (d) sieving
37. 37.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
38. 38.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) sand and pebbles (d) a balloon
39. 39.🫗 How do we separate sugar from sugar water? (a) evaporating (b) sieving (c) winnowing (d) handpicking
40. 40.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier

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