Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 490 · 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 needed for the muddy water filter? (a) yeast (b) a balloon (c) cotton or cloth (d) a battery cell
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the water (d) the salt
3. 3.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a clean glass (d) a balloon
5. 5.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) yeast (d) a clean glass
7. 7.🛟 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
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) a funnel (d) a battery cell
9. 9.⚖️ 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 glass (c) the same funnel (d) how clear the water is
10. 10.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) cotton or cloth (d) a magnet
12. 12.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
13. 13.⚖️ 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
14. 14.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
15. 15.True or false: tea leaves from tea is done by sieving. (a) True (b) False
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
17. 17.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
18. 18.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
19. 19.True or false: salt from sea water is done by filtering. (a) False (b) True
20. 20.🫗 Which of these is done by filtering? (a) small stones from dal (b) bran from wheat flour (c) mud from water (d) gravel from fine sand
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) the same funnel (c) how clear the water is
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
23. 23.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
24. 24.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
25. 25.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a clean glass (d) turmeric powder
27. 27.True or false: bad grains from rice is done by handpicking. (a) True (b) False
28. 28.⚖️ 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
29. 29.⚖️ 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 keep it the same (c) we change it
30. 30.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
31. 31.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) sand and pebbles (c) a magnet (d) a battery cell
32. 32.⚖️ 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 change it (c) we keep it the same
33. 33.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
34. 34.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) sugar from sugar water (c) husk from rice grain (d) tea leaves from tea
35. 35.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
36. 36.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) husk from rice grain (c) small stones from dal (d) tea leaves from tea
37. 37.True or false: bad grains from rice is done by sieving. (a) False (b) True
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
39. 39.🫗 How do we separate bran from wheat flour? (a) winnowing (b) filtering (c) handpicking (d) sieving
40. 40.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) salt from sea water (c) husk from rice grain (d) sugar from sugar water

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