Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 606 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
3. 3.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) a funnel (d) sand and pebbles
6. 6.🫗 How do we separate small stones from dal? (a) sieving (b) filtering (c) winnowing (d) handpicking
7. 7.True or false: small stones from dal is done by handpicking. (a) True (b) False
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a magnet
9. 9.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
10. 10.🔮 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
11. 11.True or false: gravel from fine sand is done by sieving. (a) True (b) False
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) filtering (d) evaporating
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it floats on top (d) it dissolves
15. 15.⚖️ 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
16. 16.🛟 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
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same funnel
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) yeast (d) a clean glass
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a mirror (c) sand and pebbles (d) cotton or cloth
20. 20.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a mirror (d) a clean glass
22. 22.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
23. 23.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
24. 24.⚖️ 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
25. 25.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
26. 26.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) winnowing (d) handpicking
27. 27.🫗 Which of these is done by filtering? (a) mud from water (b) sugar from sugar water (c) small stones from dal (d) salt from sea water
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) a funnel (d) cotton or cloth
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
30. 30.True or false: tea leaves from tea is done by filtering. (a) True (b) False
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) muddy water (d) a battery cell
32. 32.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) yeast (d) cotton or cloth
34. 34.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
35. 35.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
36. 36.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🫗 How do we separate mud from water? (a) evaporating (b) winnowing (c) filtering (d) sieving
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the filter material (d) the same muddy water

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