Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 184 · 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.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a magnet (d) sand and pebbles
3. 3.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
5. 5.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
6. 6.⚖️ 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 muddy water
7. 7.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) a funnel (d) cotton or cloth
10. 10.🫗 How do we separate bran from wheat flour? (a) evaporating (b) sieving (c) winnowing (d) filtering
11. 11.⚖️ 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 muddy water (c) the amount poured (d) the filter material
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
13. 13.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
14. 14.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
15. 15.🫗 Which of these is done by sieving? (a) salt from sea water (b) gravel from fine sand (c) tea leaves from tea (d) chaff from wheat grain
16. 16.True or false: gravel from fine sand is done by sieving. (a) True (b) False
17. 17.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
18. 18.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a battery cell (d) a clean glass
20. 20.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) chaff from wheat grain (c) mud from water (d) bad grains from rice
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) both stay behind (d) leaves pass through
22. 22.🫗 How do we separate sugar from sugar water? (a) handpicking (b) evaporating (c) winnowing (d) filtering
23. 23.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
24. 24.True or false: small stones from dal is done by winnowing. (a) False (b) True
25. 25.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a balloon (d) cotton or cloth
27. 27.🫗 How do we separate husk from rice grain? (a) winnowing (b) filtering (c) sieving (d) handpicking
28. 28.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
29. 29.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
30. 30.True or false: sugar from sugar water is done by sieving. (a) True (b) False
31. 31.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) sieving (d) winnowing
32. 32.🫗 Which of these is done by filtering? (a) husk from rice grain (b) small stones from dal (c) tea leaves from tea (d) sugar from sugar water
33. 33.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a clean glass (d) a battery cell
34. 34.True or false: husk from rice grain is done by filtering. (a) False (b) True
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
36. 36.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) chaff from wheat grain (c) small stones from dal (d) gravel from fine sand
37. 37.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
38. 38.🫗 How do we separate bad grains from rice? (a) filtering (b) sieving (c) winnowing (d) handpicking
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) yeast (d) a funnel
40. 40.True or false: a funnel is needed for the muddy water filter. (a) True (b) False

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