Separating Mixtures Experiment Worksheet

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

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