Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 609 · 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.True or false: mud from water is done by filtering. (a) False (b) True
2. 2.⚖️ 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
3. 3.🛟 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
4. 4.True or false: small stones from dal is done by evaporating. (a) True (b) False
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) muddy water (c) sand and pebbles (d) cotton or cloth
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) clearer (d) hot
7. 7.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
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? True or false: the same funnel is kept the same. (a) True (b) False
10. 10.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
11. 11.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
12. 12.🫗 How do we separate small stones from dal? (a) winnowing (b) evaporating (c) handpicking (d) sieving
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a funnel (c) sand and pebbles (d) a clean glass
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
15. 15.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) small stones from dal (c) husk from rice grain (d) gravel from fine sand
16. 16.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
17. 17.🫗 How do we separate tea leaves from tea? (a) winnowing (b) handpicking (c) filtering (d) evaporating
18. 18.True or false: small stones from dal is done by sieving. (a) True (b) False
19. 19.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it floats on top (d) it dissolves
20. 20.⚖️ 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) the same muddy water (c) the same glass (d) the filter material
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) muddy water (d) a funnel
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a mirror (d) sand and pebbles
25. 25.⚖️ 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
26. 26.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) muddy water (d) cotton or cloth
28. 28.⚖️ 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 same glass (c) how clear the water is (d) the filter material
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) cotton or cloth (d) yeast
31. 31.True or false: tea leaves from tea is done by filtering. (a) True (b) False
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
33. 33.🫗 Which of these is done by handpicking? (a) salt from sea water (b) small stones from dal (c) sugar from sugar water (d) husk from rice grain
34. 34.🫗 Which of these is done by filtering? (a) bad grains from rice (b) chaff from wheat grain (c) tea leaves from tea (d) gravel from fine sand
35. 35.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) filtering (d) sieving
36. 36.⚖️ 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
37. 37.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
38. 38.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
39. 39.🧺 Do we need yeast 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? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it

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