Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 376 · 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) turmeric powder (b) a balloon (c) yeast (d) muddy water
2. 2.🫗 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
3. 3.🫗 How do we separate bran from wheat flour? (a) handpicking (b) evaporating (c) winnowing (d) sieving
4. 4.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
5. 5.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
6. 6.🛟 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
7. 7.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
8. 8.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
10. 10.🫗 How do we separate tea leaves from tea? (a) handpicking (b) filtering (c) winnowing (d) evaporating
11. 11.True or false: small stones from dal is done by winnowing. (a) True (b) False
12. 12.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
13. 13.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
14. 14.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
15. 15.True or false: small stones from dal is done by filtering. (a) False (b) True
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) the salt (d) nothing
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a funnel (d) a battery cell
18. 18.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) evaporating (d) winnowing
19. 19.⚖️ 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) the amount poured (d) how clear the water is
20. 20.⚖️ 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) True (b) False
21. 21.⚖️ 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
22. 22.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
23. 23.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
24. 24.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
25. 25.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) a magnet (d) a battery cell
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a funnel (d) a mirror
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) a funnel (d) muddy water
28. 28.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
29. 29.🫗 Which of these is done by winnowing? (a) salt from sea water (b) chaff from wheat grain (c) gravel from fine sand (d) small stones from dal
30. 30.⚖️ 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 muddy water (d) how clear the water is
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) muddy water (c) sand and pebbles (d) a clean glass
32. 32.⚖️ 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 same muddy water (c) the filter material
33. 33.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
34. 34.⚖️ 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) False (b) True
35. 35.True or false: bran from wheat flour is done by sieving. (a) False (b) True
36. 36.🧺 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) sand and pebbles
37. 37.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
38. 38.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed

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