Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 816 · 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.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
2. 2.⚖️ 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
3. 3.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
4. 4.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) turmeric powder
7. 7.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) chaff from wheat grain (c) husk from rice grain (d) mud from water
8. 8.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) a clean glass (d) a funnel
12. 12.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
13. 13.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a magnet (d) a funnel
15. 15.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) handpicking (d) filtering
16. 16.True or false: small stones from dal is done by evaporating. (a) True (b) False
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) turmeric powder
18. 18.True or false: small stones from dal is done by winnowing. (a) False (b) True
19. 19.⚖️ 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 glass (c) the filter material
20. 20.🫗 How do we separate small stones from dal? (a) filtering (b) winnowing (c) evaporating (d) handpicking
21. 21.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) a battery cell (d) a mirror
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) yeast
23. 23.🛟 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
24. 24.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) no, salt passes through (d) it turns to sugar
25. 25.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
26. 26.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
27. 27.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
28. 28.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
29. 29.⚖️ 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 measure it (b) we keep it the same (c) we change it
30. 30.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) filtering (d) evaporating
31. 31.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) handpicking (d) sieving
32. 32.🫗 How do we separate gravel from fine sand? (a) evaporating (b) filtering (c) handpicking (d) sieving
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) muddy water (d) a funnel
34. 34.True or false: gravel from fine sand is done by winnowing. (a) False (b) True
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a balloon (c) yeast (d) a magnet
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same glass (c) the same funnel (d) the filter material
37. 37.True or false: salt from sea water is done by winnowing. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
39. 39.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
40. 40.⚖️ 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

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