Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 659 · 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.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
2. 2.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) evaporating (d) handpicking
3. 3.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) salt from sea water (c) sugar from sugar water (d) husk from rice grain
4. 4.⚖️ 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) False (b) True
5. 5.🫗 Which of these is done by filtering? (a) husk from rice grain (b) gravel from fine sand (c) salt from sea water (d) tea leaves from tea
6. 6.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) salt from sea water (c) bran from wheat flour (d) tea leaves from tea
7. 7.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) tea leaves from tea (c) bad grains from rice (d) salt from sea water
8. 8.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
9. 9.True or false: bad grains from rice is done by evaporating. (a) True (b) False
10. 10.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, if it is cold (d) yes, always
11. 11.True or false: bran from wheat flour is done by sieving. (a) False (b) True
12. 12.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
13. 13.🧺 Do we need a battery cell 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: the same muddy water is the one thing we change. (a) True (b) False
15. 15.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) small stones from dal (c) chaff from wheat grain (d) salt from sea water
16. 16.⚖️ 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 same muddy water (d) how clear the water is
17. 17.True or false: yeast is needed for the muddy water filter. (a) False (b) True
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) yeast (d) cotton or cloth
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) cotton or cloth (c) sand and pebbles (d) a clean glass
21. 21.⚖️ 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 same glass
22. 22.⚖️ 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) True (b) False
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) muddy water (d) turmeric powder
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.⚖️ 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
26. 26.🫗 Which of these is done by winnowing? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) bad grains from rice
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🫗 Which of these is done by handpicking? (a) salt from sea water (b) tea leaves from tea (c) mud from water (d) small stones from dal
29. 29.🫗 How do we separate small stones from dal? (a) filtering (b) winnowing (c) handpicking (d) sieving
30. 30.🫗 How do we separate sugar from sugar water? (a) evaporating (b) filtering (c) winnowing (d) sieving
31. 31.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a clean glass (c) cotton or cloth (d) sand and pebbles
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) a funnel (d) a magnet
34. 34.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) sieving (d) winnowing
35. 35.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
36. 36.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
37. 37.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
38. 38.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
39. 39.⚖️ 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 measure it (c) we keep it the same
40. 40.⚖️ 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

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