Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 927 · 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.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) winnowing (d) handpicking
2. 2.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
3. 3.🫗 Which of these is done by winnowing? (a) mud from water (b) sugar from sugar water (c) gravel from fine sand (d) chaff from wheat grain
4. 4.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
5. 5.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
6. 6.⚖️ 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
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) a magnet (d) yeast
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a clean glass (d) a mirror
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) cotton or cloth (d) muddy water
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a battery cell (c) cotton or cloth (d) muddy water
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
12. 12.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
13. 13.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) sieving (d) winnowing
14. 14.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
15. 15.⚖️ 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) the amount poured (c) how clear the water is
16. 16.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
17. 17.🫗 Which of these is done by sieving? (a) mud from water (b) bran from wheat flour (c) small stones from dal (d) bad grains from rice
18. 18.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) muddy water (d) a balloon
19. 19.⚖️ 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
20. 20.True or false: small stones from dal is done by sieving. (a) True (b) False
21. 21.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bran from wheat flour (c) gravel from fine sand (d) bad grains from rice
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the same funnel (d) the filter material
23. 23.⚖️ 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) how clear the water is (c) the same muddy water (d) the same glass
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) turmeric powder (d) a funnel
25. 25.True or false: yeast is needed for the muddy water filter. (a) False (b) True
26. 26.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a funnel (d) muddy water
28. 28.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates
29. 29.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
32. 32.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the salt (d) the water
33. 33.True or false: salt from sea water is done by evaporating. (a) False (b) True
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) gravel from fine sand (c) salt from sea water (d) bran from wheat flour
36. 36.⚖️ 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
37. 37.⚖️ 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 change it (b) we measure it (c) we keep it the same
38. 38.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
39. 39.🔮 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
40. 40.⚖️ 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

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