Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 204 · 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 not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) muddy water (d) a mirror
2. 2.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
3. 3.🫗 How do we separate sugar from sugar water? (a) sieving (b) winnowing (c) filtering (d) evaporating
4. 4.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) a funnel (d) a clean glass
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) nothing (d) the mud
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
8. 8.True or false: bad grains from rice is done by handpicking. (a) True (b) False
9. 9.True or false: bad grains from rice is done by evaporating. (a) True (b) False
10. 10.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) yes, all of it (d) it turns to sand
11. 11.True or false: salt from sea water is done by handpicking. (a) True (b) False
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) turmeric powder (d) a magnet
13. 13.🫗 How do we separate salt from sea water? (a) winnowing (b) filtering (c) evaporating (d) handpicking
14. 14.⚖️ 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
15. 15.⚖️ 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 funnel (c) the filter material (d) the same muddy water
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) yeast (d) muddy water
17. 17.True or false: yeast is needed for the muddy water filter. (a) False (b) True
18. 18.⚖️ 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 funnel (c) how clear the water is (d) the same muddy water
19. 19.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
20. 20.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, always (d) yes, if it is clear
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.True or false: tea leaves from tea is done by sieving. (a) True (b) False
23. 23.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
24. 24.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) a mirror (d) a magnet
25. 25.⚖️ 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 measure it (c) we change it
26. 26.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) handpicking (d) winnowing
27. 27.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
28. 28.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) chaff from wheat grain (c) gravel from fine sand (d) small stones from dal
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
30. 30.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
31. 31.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) salt from sea water (c) gravel from fine sand (d) small stones from dal
32. 32.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) muddy water (d) a clean glass
34. 34.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
35. 35.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
36. 36.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
37. 37.True or false: bad grains from rice is done by winnowing. (a) True (b) False
38. 38.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
39. 39.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a clean glass (d) yeast

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