Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 981 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a balloon
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) cotton or cloth (d) muddy water
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) a funnel (d) a mirror
5. 5.⚖️ 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) how clear the water is (c) the filter material (d) the same muddy water
6. 6.🫗 How do we separate mud from water? (a) sieving (b) filtering (c) handpicking (d) evaporating
7. 7.🫗 How do we separate small stones from dal? (a) evaporating (b) sieving (c) filtering (d) handpicking
8. 8.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) sieving (d) winnowing
9. 9.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
10. 10.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) sugar from sugar water (c) bran from wheat flour (d) husk from rice grain
11. 11.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
12. 12.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
13. 13.True or false: small stones from dal is done by filtering. (a) False (b) True
14. 14.⚖️ 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 muddy water (b) the filter material (c) the amount poured (d) the same glass
15. 15.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) muddy water (d) a balloon
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) cotton or cloth (d) a clean glass
19. 19.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a balloon (c) a funnel (d) sand and pebbles
21. 21.⚖️ 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 same glass
22. 22.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) sand and pebbles (d) cotton or cloth
24. 24.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) husk from rice grain (c) tea leaves from tea (d) bran from wheat flour
25. 25.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
26. 26.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bran from wheat flour (c) chaff from wheat grain (d) sugar from sugar water
27. 27.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
28. 28.🫗 Which of these is done by sieving? (a) bad grains from rice (b) husk from rice grain (c) small stones from dal (d) bran from wheat flour
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a funnel (d) a magnet
30. 30.True or false: husk from rice grain is done by winnowing. (a) False (b) True
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
32. 32.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
33. 33.🛟 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
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
35. 35.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
36. 36.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
37. 37.⚖️ 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 funnel
38. 38.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
39. 39.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) husk from rice grain (c) small stones from dal (d) sugar from sugar water
40. 40.⚖️ 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 measure it (b) we change it (c) we keep it the same

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