Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 322 · 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.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) yeast (c) a magnet (d) turmeric powder
2. 2.⚖️ 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
3. 3.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
4. 4.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) filtering (d) sieving
5. 5.🫗 How do we separate salt from sea water? (a) sieving (b) filtering (c) handpicking (d) evaporating
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.⚖️ 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
8. 8.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
9. 9.🫗 How do we separate mud from water? (a) filtering (b) evaporating (c) sieving (d) winnowing
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
11. 11.True or false: mud from water is done by filtering. (a) True (b) False
12. 12.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
13. 13.True or false: gravel from fine sand is done by sieving. (a) False (b) True
14. 14.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
15. 15.⚖️ 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 same glass (c) how clear the water is (d) the amount poured
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) a funnel (d) sand and pebbles
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
18. 18.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
22. 22.⚖️ 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 amount poured (c) the same glass (d) how clear the water is
23. 23.🫗 How do we separate gravel from fine sand? (a) filtering (b) evaporating (c) winnowing (d) sieving
24. 24.⚖️ 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
25. 25.True or false: mud from water is done by winnowing. (a) False (b) True
26. 26.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
27. 27.True or false: mud from water is done by handpicking. (a) True (b) False
28. 28.⚖️ 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) True (b) False
29. 29.🫗 Which of these is done by winnowing? (a) small stones from dal (b) husk from rice grain (c) bad grains from rice (d) gravel from fine sand
30. 30.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a balloon (c) cotton or cloth (d) a funnel
32. 32.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) evaporating (d) sieving
33. 33.🫗 Which of these is done by sieving? (a) mud from water (b) bad grains from rice (c) husk from rice grain (d) bran from wheat flour
34. 34.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) muddy water (d) a funnel
36. 36.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) a balloon (d) muddy water
38. 38.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
39. 39.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) small stones from dal (c) salt from sea water (d) gravel from fine sand
40. 40.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) tea leaves from tea (c) small stones from dal (d) bad grains from rice

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