Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 564 · 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 evaporating? (a) bad grains from rice (b) salt from sea water (c) small stones from dal (d) husk from rice grain
2. 2.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
3. 3.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) a clean glass (d) cotton or cloth
6. 6.🫗 How do we separate bad grains from rice? (a) sieving (b) winnowing (c) handpicking (d) filtering
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same glass (c) how clear the water is (d) the same funnel
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) cotton or cloth (d) a funnel
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a clean glass (d) a funnel
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) muddy water (c) a clean glass (d) a funnel
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) sand and pebbles (d) a funnel
12. 12.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
13. 13.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
14. 14.True or false: salt from sea water is done by handpicking. (a) False (b) True
15. 15.🔍 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
16. 16.⚖️ 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) the same funnel (c) the filter material (d) how clear the water is
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) a funnel (d) a clean glass
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
19. 19.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) winnowing (d) sieving
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) a funnel (d) a clean glass
21. 21.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
24. 24.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) small stones from dal (c) husk from rice grain (d) tea leaves from tea
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) muddy water (d) sand and pebbles
26. 26.⚖️ 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
27. 27.⚖️ 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) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
30. 30.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
31. 31.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bran from wheat flour (c) small stones from dal (d) chaff from wheat grain
32. 32.True or false: bad grains from rice is done by handpicking. (a) True (b) False
33. 33.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) filtering (d) handpicking
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) a magnet (d) a funnel
35. 35.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
37. 37.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
38. 38.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) yeast (d) cotton or cloth
40. 40.🫗 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

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