Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 895 · 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.🫗 Which of these is done by handpicking? (a) salt from sea water (b) small stones from dal (c) gravel from fine sand (d) husk from rice grain
2. 2.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a battery cell (c) a funnel (d) muddy water
4. 4.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) salt from sea water (c) tea leaves from tea (d) small stones from dal
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) turmeric powder (d) muddy water
7. 7.True or false: turmeric powder 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? Which of these is what we measure? (a) how clear the water is (b) the amount poured (c) the same funnel (d) the same glass
9. 9.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
10. 10.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
11. 11.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) a mirror (d) turmeric powder
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
13. 13.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) sand and pebbles (d) cotton or cloth
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) yeast
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) yeast
18. 18.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
19. 19.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
20. 20.True or false: tea leaves from tea is done by filtering. (a) False (b) True
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same glass (c) the amount poured (d) the filter material
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a funnel (d) a battery cell
24. 24.⚖️ 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
25. 25.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
27. 27.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
28. 28.🔮 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) no, salt passes through (d) it turns to sand
29. 29.True or false: gravel from fine sand is done by sieving. (a) False (b) True
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a clean glass (c) a funnel (d) cotton or cloth
31. 31.🫗 How do we separate husk from rice grain? (a) handpicking (b) sieving (c) winnowing (d) filtering
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a magnet (c) turmeric powder (d) a battery cell
33. 33.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it turns to sand (d) it floats on top
34. 34.🫗 How do we separate bad grains from rice? (a) winnowing (b) evaporating (c) handpicking (d) filtering
35. 35.True or false: bran from wheat flour is done by sieving. (a) True (b) False
36. 36.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) sieving (c) filtering (d) handpicking
37. 37.🫗 Which of these is done by sieving? (a) bad grains from rice (b) husk from rice grain (c) bran from wheat flour (d) mud from water
38. 38.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.🫗 How do we separate sugar from sugar water? (a) handpicking (b) evaporating (c) sieving (d) filtering

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