Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 388 · 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 sieving? (a) salt from sea water (b) tea leaves from tea (c) bran from wheat flour (d) sugar from sugar water
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) yeast (d) a clean glass
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.True or false: bad grains from rice is done by handpicking. (a) True (b) False
5. 5.True or false: mud from water is done by handpicking. (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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) cotton or cloth (d) yeast
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a balloon (c) sand and pebbles (d) a funnel
9. 9.🫗 How do we separate small stones from dal? (a) evaporating (b) winnowing (c) sieving (d) handpicking
10. 10.⚖️ 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 amount poured (c) the same muddy water (d) how clear the water is
11. 11.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
12. 12.True or false: yeast is needed for the muddy water filter. (a) True (b) False
13. 13.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
14. 14.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) sugar from sugar water (c) mud from water (d) bran from wheat flour
15. 15.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) cotton or cloth (d) a funnel
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a balloon (d) a clean glass
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
19. 19.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) a clean glass (d) a funnel
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) False (b) True
22. 22.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
23. 23.⚖️ 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) True (b) False
24. 24.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
25. 25.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
26. 26.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) small stones from dal (c) husk from rice grain (d) gravel from fine sand
27. 27.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
28. 28.🫗 How do we separate chaff from wheat grain? (a) filtering (b) sieving (c) winnowing (d) handpicking
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) turmeric powder (d) sand and pebbles
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) a clean glass (d) a mirror
31. 31.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
32. 32.🫗 How do we separate bad grains from rice? (a) sieving (b) evaporating (c) filtering (d) handpicking
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
34. 34.⚖️ 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 keep it the same (c) we change it
35. 35.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
36. 36.🔮 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
37. 37.⚖️ 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
38. 38.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
39. 39.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) muddy water (d) sand and pebbles

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