Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 318 · 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.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
2. 2.🫗 How do we separate tea leaves from tea? (a) sieving (b) evaporating (c) winnowing (d) filtering
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) turmeric powder (d) muddy water
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
6. 6.🔮 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 sand (d) it turns to sugar
7. 7.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) handpicking (d) winnowing
8. 8.🫗 How do we separate small stones from dal? (a) filtering (b) handpicking (c) winnowing (d) sieving
9. 9.⚖️ 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) the same glass (c) how clear the water is (d) the same muddy water
10. 10.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) handpicking (d) winnowing
11. 11.True or false: salt from sea water is done by evaporating. (a) True (b) False
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a balloon (d) muddy water
14. 14.True or false: bad grains from rice is done by handpicking. (a) False (b) True
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a funnel (d) a battery cell
16. 16.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
17. 17.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
18. 18.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a mirror (c) a balloon (d) a clean glass
20. 20.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) muddy water (d) sand and pebbles
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) turmeric powder (d) a funnel
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a balloon (d) yeast
25. 25.⚖️ 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
26. 26.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
27. 27.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
28. 28.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
29. 29.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
30. 30.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) salty (d) hot
31. 31.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) the filter material (c) how clear the water is
33. 33.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves pass through (d) leaves stay behind
34. 34.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
35. 35.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) filtering (d) evaporating
36. 36.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
37. 37.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
39. 39.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed

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