Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 689 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
2. 2.⚖️ 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
3. 3.True or false: yeast is needed for the muddy water filter. (a) False (b) True
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a funnel (d) a clean glass
5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
6. 6.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
8. 8.🫗 How do we separate sugar from sugar water? (a) sieving (b) filtering (c) evaporating (d) winnowing
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
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 amount poured (b) the same muddy water (c) how clear the water is (d) the filter material
12. 12.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) sugar from sugar water (c) gravel from fine sand (d) husk from rice grain
13. 13.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) tea leaves from tea (c) small stones from dal (d) husk from rice grain
14. 14.True or false: husk from rice grain is done by handpicking. (a) False (b) True
15. 15.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) filtering (d) evaporating
16. 16.🫗 Which of these is done by sieving? (a) mud from water (b) bran from wheat flour (c) chaff from wheat grain (d) salt from sea water
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
18. 18.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
19. 19.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) filtering (d) handpicking
20. 20.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
21. 21.True or false: tea leaves from tea is done by filtering. (a) True (b) False
22. 22.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
23. 23.True or false: gravel from fine sand is done by sieving. (a) True (b) False
24. 24.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a funnel (c) turmeric powder (d) a balloon
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
26. 26.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) muddy water (d) cotton or cloth
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) turmeric powder (d) sand and pebbles
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a battery cell (d) a funnel
31. 31.🫗 Which of these is done by evaporating? (a) small stones from dal (b) mud from water (c) salt from sea water (d) husk from rice grain
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ 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
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) sand and pebbles (c) cotton or cloth (d) a funnel
36. 36.⚖️ 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
37. 37.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) evaporating (d) winnowing
38. 38.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
39. 39.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
40. 40.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed

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