Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 803 · 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? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
3. 3.🧺 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 clean glass
4. 4.🧺 Do we need a magnet 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) turmeric powder (b) a clean glass (c) a funnel (d) sand and pebbles
6. 6.⚖️ 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 funnel (b) how clear the water is (c) the same glass (d) the filter material
7. 7.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
8. 8.True or false: small stones from dal is done by filtering. (a) True (b) False
9. 9.True or false: salt from sea water is done by evaporating. (a) True (b) False
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
11. 11.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sugar (d) it turns to sand
12. 12.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) a clean glass (d) cotton or cloth
14. 14.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) evaporating (d) sieving
15. 15.⚖️ 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) False (b) True
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a balloon (c) muddy water (d) sand and pebbles
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a funnel (c) turmeric powder (d) a balloon
19. 19.True or false: husk from rice grain is done by filtering. (a) True (b) False
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
21. 21.True or false: bran from wheat flour is done by filtering. (a) True (b) False
22. 22.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
23. 23.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
24. 24.🫗 How do we separate bran from wheat flour? (a) winnowing (b) evaporating (c) sieving (d) handpicking
25. 25.🫗 Which of these is done by evaporating? (a) mud from water (b) sugar from sugar water (c) small stones from dal (d) bad grains from rice
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) a clean glass (d) a balloon
27. 27.🫗 Which of these is done by handpicking? (a) small stones from dal (b) chaff from wheat grain (c) sugar from sugar water (d) salt from sea water
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) cotton or cloth (d) a battery cell
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.⚖️ 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) how clear the water is (c) the amount poured (d) the same glass
31. 31.True or false: sugar from sugar water is done by filtering. (a) True (b) False
32. 32.🫗 Which of these is done by winnowing? (a) small stones from dal (b) gravel from fine sand (c) husk from rice grain (d) salt from sea water
33. 33.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
34. 34.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
35. 35.🫗 Which of these is done by filtering? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) mud from water
36. 36.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
37. 37.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) sand and pebbles (d) turmeric powder
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a funnel (d) a mirror
40. 40.🫗 How do we separate tea leaves from tea? (a) filtering (b) winnowing (c) evaporating (d) handpicking

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