Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 668 · 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 turmeric powder for the muddy water filter? (a) not needed (b) needed
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a magnet (d) muddy water
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
4. 4.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
5. 5.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) husk from rice grain (c) bran from wheat flour (d) bad grains from rice
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
7. 7.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) sand and pebbles (d) cotton or cloth
9. 9.🫗 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
10. 10.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a magnet
12. 12.🫗 How do we separate bran from wheat flour? (a) winnowing (b) sieving (c) filtering (d) handpicking
13. 13.⚖️ 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 amount poured
14. 14.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) cotton or cloth (d) a funnel
16. 16.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
17. 17.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bran from wheat flour (c) small stones from dal (d) gravel from fine sand
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
21. 21.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
22. 22.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) mud from water (c) sugar from sugar water (d) small stones from dal
23. 23.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) evaporating (d) filtering
24. 24.⚖️ 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 change it (c) we measure it
25. 25.🫗 Which of these is done by evaporating? (a) mud from water (b) salt from sea water (c) gravel from fine sand (d) bad grains from rice
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) a clean glass (d) muddy water
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) a funnel (d) a balloon
30. 30.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) filtering (c) sieving (d) handpicking
31. 31.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
32. 32.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
34. 34.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a battery cell (d) muddy water
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a magnet (d) cotton or cloth
37. 37.⚖️ 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
38. 38.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
39. 39.⚖️ 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 glass (b) the same muddy water (c) how clear the water is (d) the filter material
40. 40.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed

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