Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 276 · 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.⚖️ 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) False (b) True
2. 2.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
3. 3.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) sieving (d) filtering
4. 4.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) muddy water (d) a balloon
6. 6.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.🫗 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
9. 9.True or false: small stones from dal is done by handpicking. (a) False (b) True
10. 10.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same funnel (c) the same muddy water (d) the filter material
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) a magnet (d) a battery cell
14. 14.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
15. 15.🫗 How do we separate mud from water? (a) winnowing (b) handpicking (c) filtering (d) sieving
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) a funnel (d) a battery cell
17. 17.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
18. 18.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) cotton or cloth (d) a clean glass
20. 20.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) winnowing (d) filtering
21. 21.True or false: husk from rice grain is done by handpicking. (a) False (b) True
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) a battery cell
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a balloon (d) sand and pebbles
24. 24.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
25. 25.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
27. 27.True or false: salt from sea water is done by filtering. (a) False (b) True
28. 28.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
29. 29.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) yeast (c) turmeric powder (d) a magnet
31. 31.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
32. 32.🫗 How do we separate gravel from fine sand? (a) filtering (b) sieving (c) winnowing (d) handpicking
33. 33.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) winnowing (d) handpicking
34. 34.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
35. 35.⚖️ 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 keep it the same (b) we measure it (c) we change it
36. 36.🫗 Which of these is done by handpicking? (a) small stones from dal (b) chaff from wheat grain (c) salt from sea water (d) tea leaves from tea
37. 37.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the filter material (c) how clear the water is (d) the same glass
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
40. 40.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face

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