Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 515 · 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.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
2. 2.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) muddy water (d) a clean glass
5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it floats on top (d) it turns to sand
6. 6.⚖️ 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 muddy water (c) how clear the water is (d) the same funnel
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) cotton or cloth (d) sand and pebbles
8. 8.True or false: husk from rice grain is done by winnowing. (a) False (b) True
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) a magnet (d) a funnel
10. 10.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
11. 11.🔮 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
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
13. 13.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) mud from water (c) salt from sea water (d) bad grains from rice
14. 14.🫗 How do we separate tea leaves from tea? (a) evaporating (b) winnowing (c) handpicking (d) filtering
15. 15.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
16. 16.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
17. 17.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
21. 21.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
23. 23.🫗 Which of these is done by handpicking? (a) mud from water (b) gravel from fine sand (c) husk from rice grain (d) small stones from dal
24. 24.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a clean glass (d) a mirror
26. 26.⚖️ 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) False (b) True
27. 27.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
28. 28.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) husk from rice grain (c) bran from wheat flour (d) salt from sea water
29. 29.🔮 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
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) yeast
31. 31.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) turmeric powder (d) a battery cell
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) muddy water (c) a funnel (d) cotton or cloth
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a battery cell (d) sand and pebbles
34. 34.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
35. 35.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
36. 36.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) husk from rice grain (c) bad grains from rice (d) bran from wheat flour
37. 37.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
38. 38.⚖️ 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
39. 39.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) winnowing (d) handpicking
40. 40.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed

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