Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 240 · 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 filtering? (a) chaff from wheat grain (b) tea leaves from tea (c) bad grains from rice (d) husk from rice grain
2. 2.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
3. 3.⚖️ 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 keep it the same (c) we measure it
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
5. 5.🫗 How do we separate bad grains from rice? (a) sieving (b) filtering (c) handpicking (d) winnowing
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a clean glass (d) a balloon
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a battery cell (c) a magnet (d) yeast
8. 8.⚖️ 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 glass (d) how clear the water is
9. 9.🫗 How do we separate husk from rice grain? (a) evaporating (b) filtering (c) winnowing (d) sieving
10. 10.🫗 Which of these is done by handpicking? (a) salt from sea water (b) small stones from dal (c) tea leaves from tea (d) husk from rice grain
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) yeast (c) muddy water (d) a funnel
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) cotton or cloth (c) muddy water (d) sand and pebbles
13. 13.🔮 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
14. 14.True or false: salt from sea water is done by filtering. (a) False (b) True
15. 15.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
16. 16.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
17. 17.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) muddy water (c) a funnel (d) a clean glass
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
20. 20.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
21. 21.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the amount poured
23. 23.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
24. 24.🫗 Which of these is done by filtering? (a) husk from rice grain (b) bran from wheat flour (c) mud from water (d) gravel from fine sand
25. 25.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
26. 26.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) winnowing (d) sieving
27. 27.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
28. 28.🫗 Which of these is done by sieving? (a) small stones from dal (b) chaff from wheat grain (c) sugar from sugar water (d) gravel from fine sand
29. 29.🫗 How do we separate bran from wheat flour? (a) evaporating (b) filtering (c) sieving (d) winnowing
30. 30.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
31. 31.🫗 Which of these is done by evaporating? (a) small stones from dal (b) bran from wheat flour (c) salt from sea water (d) mud from water
32. 32.⚖️ 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 keep it the same (c) we measure it
33. 33.True or false: small stones from dal is done by handpicking. (a) False (b) True
34. 34.⚖️ 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) True (b) False
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) a funnel (d) sand and pebbles
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) how clear the water is (c) the amount poured (d) the same muddy water
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
38. 38.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
39. 39.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
40. 40.True or false: tea leaves from tea is done by filtering. (a) False (b) True

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