Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 699 · 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.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
3. 3.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
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 filter material (b) the same muddy water (c) the same funnel (d) the same glass
5. 5.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
6. 6.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a balloon
8. 8.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
9. 9.True or false: bad grains from rice is done by filtering. (a) False (b) True
10. 10.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
11. 11.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) no, salt passes through (d) yes, all of it
12. 12.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
14. 14.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) sieving (d) evaporating
15. 15.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
16. 16.⚖️ 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) how clear the water is (c) the same glass
17. 17.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
18. 18.🫗 Which of these is done by handpicking? (a) mud from water (b) salt from sea water (c) sugar from sugar water (d) bad grains from rice
19. 19.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
20. 20.🫗 How do we separate bran from wheat flour? (a) handpicking (b) winnowing (c) sieving (d) evaporating
21. 21.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
23. 23.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
24. 24.🫗 How do we separate small stones from dal? (a) sieving (b) filtering (c) handpicking (d) evaporating
25. 25.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
26. 26.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) how clear the water is (c) the same muddy water (d) the filter material
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a clean glass (c) yeast (d) turmeric powder
29. 29.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) cotton or cloth (c) a clean glass (d) sand and pebbles
31. 31.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) sieving (d) filtering
32. 32.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) husk from rice grain (c) gravel from fine sand (d) small stones from dal
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a clean glass (d) a battery cell
34. 34.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) handpicking (d) sieving
35. 35.True or false: tea leaves from tea is done by filtering. (a) True (b) False
36. 36.🫗 How do we separate gravel from fine sand? (a) handpicking (b) evaporating (c) winnowing (d) sieving
37. 37.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
38. 38.True or false: small stones from dal is done by sieving. (a) True (b) False
39. 39.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
40. 40.True or false: bran from wheat flour is done by sieving. (a) False (b) True

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