Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 466 · 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 keep it the same (b) we change it (c) we measure it
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) a balloon
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) how clear the water is (c) the same glass (d) the amount poured
4. 4.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) nothing (d) the salt
5. 5.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
6. 6.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
7. 7.True or false: tea leaves from tea is done by filtering. (a) False (b) True
8. 8.🔍 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
9. 9.True or false: bran from wheat flour is done by evaporating. (a) False (b) True
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
12. 12.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
13. 13.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
14. 14.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) winnowing (d) filtering
15. 15.⚖️ 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 amount poured (c) how clear the water is
16. 16.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
17. 17.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) gravel from fine sand (c) mud from water (d) tea leaves from tea
18. 18.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
19. 19.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) a balloon
21. 21.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) filtering (d) handpicking
22. 22.⚖️ 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
23. 23.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a magnet (d) muddy water
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
26. 26.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) muddy water (d) a magnet
28. 28.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
29. 29.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) a battery cell
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) cotton or cloth (d) a mirror
32. 32.True or false: bad grains from rice is done by filtering. (a) True (b) False
33. 33.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
37. 37.⚖️ 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 change it (c) we measure it
38. 38.True or false: small stones from dal is done by handpicking. (a) True (b) False
39. 39.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) bad grains from rice (c) chaff from wheat grain (d) salt from sea water
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the filter material (c) how clear the water is (d) the same glass

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