Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 438 · 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 done by filtering? (a) salt from sea water (b) chaff from wheat grain (c) bad grains from rice (d) mud from water
2. 2.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
3. 3.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
4. 4.True or false: bran from wheat flour is done by sieving. (a) True (b) False
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a funnel (d) yeast
6. 6.True or false: husk from rice grain is done by winnowing. (a) False (b) True
7. 7.⚖️ 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
8. 8.🫗 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
9. 9.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier
10. 10.⚖️ 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 change it (b) we keep it the same (c) we measure it
11. 11.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) small stones from dal (c) husk from rice grain (d) sugar from sugar water
12. 12.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
13. 13.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
14. 14.🫗 How do we separate bad grains from rice? (a) sieving (b) winnowing (c) filtering (d) handpicking
15. 15.🫗 How do we separate chaff from wheat grain? (a) filtering (b) sieving (c) winnowing (d) handpicking
16. 16.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) cotton or cloth (d) a funnel
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
19. 19.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) tea stays behind (d) leaves stay behind
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) sand and pebbles (d) a clean glass
22. 22.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
23. 23.🫗 How do we separate sugar from sugar water? (a) handpicking (b) filtering (c) winnowing (d) evaporating
24. 24.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the filter adds soap (d) the mud dissolves
25. 25.True or false: bad grains from rice is done by filtering. (a) True (b) False
26. 26.🫗 How do we separate husk from rice grain? (a) sieving (b) evaporating (c) filtering (d) winnowing
27. 27.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a balloon (d) sand and pebbles
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a funnel (d) turmeric powder
33. 33.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) how clear the water is (c) the amount poured (d) the same funnel
35. 35.True or false: bad grains from rice is done by handpicking. (a) False (b) True
36. 36.⚖️ 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
37. 37.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
38. 38.⚖️ 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 measure it (c) we keep it the same
39. 39.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bad grains from rice (c) chaff from wheat grain (d) salt from sea water
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) how clear the water is (c) the filter material (d) the same glass

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