Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 344 · 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.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a balloon (d) muddy water
2. 2.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
3. 3.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) bad grains from rice (c) mud from water (d) salt from sea water
4. 4.🫗 Which of these is done by handpicking? (a) salt from sea water (b) gravel from fine sand (c) small stones from dal (d) husk from rice grain
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) turmeric powder (c) muddy water (d) a funnel
6. 6.True or false: husk from rice grain is done by winnowing. (a) True (b) False
7. 7.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) evaporating (c) winnowing (d) sieving
8. 8.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) a mirror (d) a magnet
9. 9.True or false: gravel from fine sand is done by sieving. (a) True (b) False
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a magnet (d) sand and pebbles
11. 11.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) yeast (d) sand and pebbles
13. 13.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
14. 14.⚖️ 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
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
16. 16.🫗 How do we separate husk from rice grain? (a) sieving (b) handpicking (c) evaporating (d) winnowing
17. 17.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the same glass (d) the same muddy water
19. 19.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
20. 20.⚖️ 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
21. 21.🫗 How do we separate mud from water? (a) sieving (b) handpicking (c) filtering (d) winnowing
22. 22.⚖️ 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 funnel (c) the filter material (d) how clear the water is
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) cotton or cloth (d) a funnel
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a magnet (c) a funnel (d) sand and pebbles
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
28. 28.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind
29. 29.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
31. 31.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
32. 32.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
33. 33.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
34. 34.🫗 How do we separate small stones from dal? (a) evaporating (b) filtering (c) handpicking (d) sieving
35. 35.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material 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 the one thing we change. (a) False (b) True
39. 39.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) mud from water (c) husk from rice grain (d) sugar from sugar water
40. 40.🛟 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

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