Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 585 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
2. 2.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sugar (d) it turns to sand
4. 4.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
5. 5.⚖️ 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
6. 6.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) a mirror (d) a magnet
8. 8.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
9. 9.🫗 How do we separate tea leaves from tea? (a) evaporating (b) sieving (c) winnowing (d) filtering
10. 10.🫗 How do we separate small stones from dal? (a) winnowing (b) evaporating (c) filtering (d) handpicking
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
12. 12.🫗 Which of these is done by handpicking? (a) mud from water (b) small stones from dal (c) sugar from sugar water (d) gravel from fine sand
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.⚖️ 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) True (b) False
15. 15.⚖️ 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) the same glass (c) the filter material (d) how clear the water is
16. 16.🫗 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
17. 17.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
18. 18.🫗 Which of these is done by filtering? (a) bad grains from rice (b) bran from wheat flour (c) sugar from sugar water (d) mud from water
19. 19.True or false: salt from sea water is done by handpicking. (a) True (b) False
20. 20.⚖️ 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
21. 21.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
22. 22.🫗 How do we separate bad grains from rice? (a) filtering (b) handpicking (c) sieving (d) winnowing
23. 23.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is cold (d) yes, if it is clear
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a funnel (c) a mirror (d) a magnet
25. 25.⚖️ 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 same muddy water (c) how clear the water is
26. 26.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
27. 27.🫗 Which of these is done by winnowing? (a) salt from sea water (b) gravel from fine sand (c) chaff from wheat grain (d) sugar from sugar water
28. 28.True or false: bran from wheat flour is done by evaporating. (a) False (b) True
29. 29.True or false: bad grains from rice is done by handpicking. (a) False (b) True
30. 30.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
31. 31.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) sugar from sugar water (c) chaff from wheat grain (d) tea leaves from tea
32. 32.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a magnet (d) a battery cell
33. 33.⚖️ 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
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
36. 36.🫗 Which of these is done by sieving? (a) husk from rice grain (b) tea leaves from tea (c) bran from wheat flour (d) sugar from sugar water
37. 37.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) sand and pebbles (d) muddy water
39. 39.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
40. 40.⚖️ 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) False (b) True

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