Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 50 · 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.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
2. 2.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
3. 3.⚖️ 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) True (b) False
4. 4.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
5. 5.🫗 How do we separate tea leaves from tea? (a) winnowing (b) handpicking (c) sieving (d) filtering
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
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 filter material (c) the same funnel (d) how clear the water is
8. 8.True or false: tea leaves from tea is done by sieving. (a) False (b) True
9. 9.⚖️ 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 glass
10. 10.⚖️ 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 change it (c) we measure it
11. 11.🫗 How do we separate mud from water? (a) sieving (b) winnowing (c) filtering (d) evaporating
12. 12.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a balloon (d) cotton or cloth
14. 14.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
15. 15.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a clean glass (c) a magnet (d) yeast
16. 16.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
17. 17.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
18. 18.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
19. 19.🫗 How do we separate bad grains from rice? (a) sieving (b) handpicking (c) winnowing (d) filtering
20. 20.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
21. 21.🫗 How do we separate gravel from fine sand? (a) sieving (b) evaporating (c) handpicking (d) winnowing
22. 22.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
23. 23.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) small stones from dal (c) chaff from wheat grain (d) gravel from fine sand
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a funnel (c) a clean glass (d) muddy water
25. 25.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
26. 26.⚖️ 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) False (b) True
27. 27.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
28. 28.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
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 keep it the same (b) we change it (c) we measure it
30. 30.True or false: small stones from dal is done by handpicking. (a) False (b) True
31. 31.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) yeast (d) cotton or cloth
33. 33.⚖️ 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) False (b) True
34. 34.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) winnowing (d) evaporating
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.⚖️ 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
37. 37.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
38. 38.True or false: bad grains from rice is done by handpicking. (a) True (b) False
39. 39.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) muddy water (d) a clean glass

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