Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 506 · 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: turmeric powder is needed for the muddy water filter. (a) False (b) True
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
3. 3.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
4. 4.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
5. 5.🫗 How do we separate mud from water? (a) filtering (b) evaporating (c) winnowing (d) sieving
6. 6.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a funnel (d) turmeric powder
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) sand and pebbles (c) a funnel (d) muddy water
9. 9.⚖️ 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
10. 10.⚖️ 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 funnel (b) the same muddy water (c) the amount poured (d) the filter material
11. 11.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) mud from water (c) bad grains from rice (d) salt from sea water
12. 12.🫗 How do we separate husk from rice grain? (a) evaporating (b) sieving (c) winnowing (d) handpicking
13. 13.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
15. 15.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
16. 16.True or false: small stones from dal is done by winnowing. (a) False (b) True
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) muddy water (d) turmeric powder
18. 18.⚖️ 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
19. 19.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) small stones from dal (c) tea leaves from tea (d) sugar from sugar water
20. 20.⚖️ 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
21. 21.🔮 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
22. 22.True or false: chaff from wheat grain is done by sieving. (a) False (b) True
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
24. 24.🫗 How do we separate gravel from fine sand? (a) sieving (b) evaporating (c) handpicking (d) winnowing
25. 25.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) husk from rice grain (c) small stones from dal (d) bran from wheat flour
26. 26.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a balloon (d) cotton or cloth
28. 28.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
31. 31.🛟 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
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) a clean glass (d) sand and pebbles
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a clean glass (c) a magnet (d) a balloon
34. 34.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
36. 36.True or false: salt from sea water is done by winnowing. (a) True (b) False
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
38. 38.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
39. 39.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
40. 40.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False

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