Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 595 · 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 amount poured”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a funnel (d) a battery cell
3. 3.🫗 How do we separate sugar from sugar water? (a) evaporating (b) sieving (c) filtering (d) handpicking
4. 4.🫗 How do we separate chaff from wheat grain? (a) sieving (b) filtering (c) handpicking (d) winnowing
5. 5.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) a funnel (d) a magnet
6. 6.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a magnet (d) sand and pebbles
8. 8.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
9. 9.🫗 Which of these is done by evaporating? (a) salt from sea water (b) bad grains from rice (c) husk from rice grain (d) small stones from dal
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a magnet (d) muddy water
14. 14.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) chaff from wheat grain (c) mud from water (d) small stones from dal
15. 15.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
16. 16.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
17. 17.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
18. 18.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
19. 19.🛟 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
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same muddy water (c) the filter material (d) how clear the water is
21. 21.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
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 same muddy water (b) the amount poured (c) the filter material (d) the same funnel
23. 23.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) muddy water (c) a funnel (d) cotton or cloth
25. 25.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
26. 26.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
28. 28.🫗 How do we separate bad grains from rice? (a) handpicking (b) filtering (c) sieving (d) winnowing
29. 29.True or false: husk from rice grain is done by filtering. (a) True (b) False
30. 30.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
31. 31.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
32. 32.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
33. 33.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) muddy water (d) turmeric powder
35. 35.True or false: yeast is needed for the muddy water filter. (a) True (b) False
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
37. 37.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
38. 38.True or false: salt from sea water is done by evaporating. (a) True (b) False
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) a mirror
40. 40.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold

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