Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 697 · 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.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.⚖️ 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
4. 4.🫗 Which of these is done by evaporating? (a) mud from water (b) sugar from sugar water (c) chaff from wheat grain (d) tea leaves from tea
5. 5.⚖️ 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
6. 6.⚖️ 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
7. 7.True or false: husk from rice grain is done by sieving. (a) False (b) True
8. 8.True or false: small stones from dal is done by handpicking. (a) True (b) False
9. 9.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
10. 10.🫗 How do we separate sugar from sugar water? (a) evaporating (b) sieving (c) handpicking (d) winnowing
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the same funnel (c) the same glass (d) how clear the water is
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a funnel (c) cotton or cloth (d) sand and pebbles
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) yeast
14. 14.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) a battery cell
16. 16.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) sand and pebbles (d) a clean glass
18. 18.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
20. 20.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) turmeric powder (d) muddy water
22. 22.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
23. 23.True or false: husk from rice grain is done by winnowing. (a) False (b) True
24. 24.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
25. 25.True or false: mud from water is done by filtering. (a) False (b) True
26. 26.🫗 Which of these is done by sieving? (a) mud from water (b) small stones from dal (c) bran from wheat flour (d) sugar from sugar water
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) sand and pebbles (d) yeast
28. 28.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
29. 29.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
30. 30.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
31. 31.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
32. 32.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
33. 33.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bad grains from rice (c) bran from wheat flour (d) husk from rice grain
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) sand and pebbles (d) a battery cell
35. 35.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) nothing (d) the salt
37. 37.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
38. 38.True or false: bran from wheat flour is done by evaporating. (a) False (b) True
39. 39.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a battery cell (c) a magnet (d) a mirror

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