Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 867 · 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.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
2. 2.⚖️ 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 same funnel (c) the filter material
3. 3.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) sieving (d) evaporating
4. 4.⚖️ 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 muddy water
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) cotton or cloth (c) a clean glass (d) muddy water
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) muddy water (d) a clean glass
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the same glass (c) the same funnel (d) how clear the water is
8. 8.True or false: small stones from dal is done by evaporating. (a) True (b) False
9. 9.🫗 Which of these is done by evaporating? (a) salt from sea water (b) bran from wheat flour (c) husk from rice grain (d) tea leaves from tea
10. 10.True or false: mud from water is done by filtering. (a) False (b) True
11. 11.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
12. 12.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
13. 13.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
14. 14.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) tea leaves from tea (c) sugar from sugar water (d) small stones from dal
15. 15.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the water evaporates (d) the mud dissolves
16. 16.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) a battery cell (d) a magnet
17. 17.🔍 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
18. 18.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) chaff from wheat grain (c) tea leaves from tea (d) sugar from sugar water
19. 19.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
20. 20.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
22. 22.🫗 How do we separate salt from sea water? (a) sieving (b) filtering (c) winnowing (d) evaporating
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
25. 25.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
26. 26.🫗 How do we separate bran from wheat flour? (a) handpicking (b) winnowing (c) sieving (d) evaporating
27. 27.True or false: bran from wheat flour is done by evaporating. (a) False (b) True
28. 28.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) gravel from fine sand (c) mud from water (d) small stones from dal
29. 29.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
30. 30.⚖️ 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 amount poured (c) the same glass (d) the filter material
31. 31.True or false: bran from wheat flour is done by sieving. (a) False (b) True
32. 32.🧺 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) a funnel
33. 33.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a battery cell (d) sand and pebbles
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) yeast (d) muddy water
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a battery cell (d) a funnel
39. 39.True or false: yeast is needed for the muddy water filter. (a) False (b) True
40. 40.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False

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