Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 537 · 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 a funnel for the muddy water filter? (a) needed (b) not needed
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
4. 4.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) a mirror (d) a battery cell
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) muddy water (d) a balloon
6. 6.🫗 Which of these is done by filtering? (a) mud from water (b) salt from sea water (c) husk from rice grain (d) gravel from fine sand
7. 7.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) husk from rice grain (c) salt from sea water (d) small stones from dal
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the same glass
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) a funnel (d) yeast
10. 10.⚖️ 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 filter material (c) how clear the water is (d) the same muddy water
11. 11.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) filtering (d) sieving
12. 12.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a clean glass (d) yeast
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) muddy water (d) cotton or cloth
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a balloon (d) muddy water
16. 16.⚖️ 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 muddy water (b) the filter material (c) how clear the water is (d) the amount poured
17. 17.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
19. 19.🫗 How do we separate husk from rice grain? (a) winnowing (b) evaporating (c) handpicking (d) filtering
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) turmeric powder
21. 21.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
22. 22.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) small stones from dal (c) gravel from fine sand (d) salt from sea water
23. 23.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
24. 24.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
25. 25.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) sugar from sugar water (c) chaff from wheat grain (d) bad grains from rice
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a magnet (d) sand and pebbles
27. 27.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
28. 28.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) turmeric powder
30. 30.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
31. 31.True or false: gravel from fine sand is done by sieving. (a) True (b) False
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.⚖️ 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
34. 34.🫗 How do we separate bran from wheat flour? (a) handpicking (b) winnowing (c) evaporating (d) sieving
35. 35.True or false: bad grains from rice is done by handpicking. (a) True (b) False
36. 36.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) yes, if it is clear (d) no, germs may stay
37. 37.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) muddy water (d) a mirror
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a clean glass (d) a mirror
40. 40.🛟 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

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