Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 874 · 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 not needed for the muddy water filter? (a) a magnet (b) a funnel (c) cotton or cloth (d) a clean glass
2. 2.🫗 Which of these is done by filtering? (a) mud from water (b) bran from wheat flour (c) bad grains from rice (d) small stones from dal
3. 3.🛟 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
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
5. 5.True or false: husk from rice grain is done by winnowing. (a) True (b) False
6. 6.🫗 How do we separate mud from water? (a) handpicking (b) sieving (c) filtering (d) evaporating
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) small stones from dal (c) tea leaves from tea (d) husk from rice grain
9. 9.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) yeast (d) sand and pebbles
10. 10.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
11. 11.🫗 How do we separate husk from rice grain? (a) winnowing (b) sieving (c) evaporating (d) filtering
12. 12.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a magnet (d) cotton or cloth
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
15. 15.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
16. 16.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
17. 17.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
19. 19.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
20. 20.⚖️ 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 glass (b) how clear the water is (c) the filter material (d) the same muddy water
21. 21.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a mirror (d) muddy water
23. 23.🫗 Which of these is done by evaporating? (a) small stones from dal (b) bad grains from rice (c) gravel from fine sand (d) salt from sea water
24. 24.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same glass (c) the filter material (d) how clear the water is
27. 27.🧺 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 balloon (d) a funnel
28. 28.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
29. 29.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
30. 30.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
31. 31.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
32. 32.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
33. 33.⚖️ 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 measure it (c) we keep it the same
34. 34.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
35. 35.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bad grains from rice (c) husk from rice grain (d) salt from sea water
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) muddy water (d) a battery cell
37. 37.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) bran from wheat flour (c) salt from sea water (d) husk from rice grain
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 change it (b) we measure it (c) we keep it the same
39. 39.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) tea leaves from tea (c) chaff from wheat grain (d) bad grains from rice
40. 40.True or false: gravel from fine sand is done by sieving. (a) False (b) True

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