Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 135 · 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? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🫗 How do we separate small stones from dal? (a) winnowing (b) handpicking (c) filtering (d) sieving
3. 3.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
4. 4.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
5. 5.True or false: salt from sea water is done by winnowing. (a) False (b) True
6. 6.🫗 Which of these is done by handpicking? (a) salt from sea water (b) chaff from wheat grain (c) tea leaves from tea (d) small stones from dal
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) a battery cell (d) a clean glass
8. 8.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) muddy water (d) a magnet
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) turmeric powder
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
13. 13.⚖️ 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 change it (c) we measure it
14. 14.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) a balloon (d) a magnet
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a clean glass (d) sand and pebbles
17. 17.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
18. 18.⚖️ 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 same funnel
19. 19.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
20. 20.⚖️ 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
21. 21.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
22. 22.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
23. 23.True or false: tea leaves from tea is done by sieving. (a) True (b) False
24. 24.⚖️ 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
25. 25.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
26. 26.🫗 How do we separate bran from wheat flour? (a) sieving (b) winnowing (c) evaporating (d) handpicking
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) how clear the water is (c) the same muddy water (d) the same glass
29. 29.🫗 How do we separate gravel from fine sand? (a) evaporating (b) filtering (c) handpicking (d) sieving
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) yeast (d) sand and pebbles
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) muddy water (d) a clean glass
33. 33.🫗 How do we separate salt from sea water? (a) handpicking (b) evaporating (c) sieving (d) filtering
34. 34.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
35. 35.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
36. 36.⚖️ 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
37. 37.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
38. 38.⚖️ 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) the filter material (c) how clear the water is
39. 39.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) handpicking (d) winnowing
40. 40.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) filtering (d) sieving

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