Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 244 · 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) a funnel (b) a magnet (c) yeast (d) a battery cell
2. 2.True or false: gravel from fine sand is done by winnowing. (a) True (b) False
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) cotton or cloth (d) a funnel
5. 5.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a magnet (d) cotton or cloth
8. 8.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
10. 10.⚖️ 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
11. 11.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) yeast (d) sand and pebbles
13. 13.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
14. 14.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
15. 15.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
17. 17.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
18. 18.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
19. 19.⚖️ 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
20. 20.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) small stones from dal (c) chaff from wheat grain (d) salt from sea water
21. 21.⚖️ 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
22. 22.🫗 How do we separate small stones from dal? (a) filtering (b) evaporating (c) handpicking (d) sieving
23. 23.🫗 Which of these is done by sieving? (a) small stones from dal (b) sugar from sugar water (c) bran from wheat flour (d) tea leaves from tea
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) sand and pebbles (d) a balloon
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
27. 27.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) evaporating (c) sieving (d) winnowing
28. 28.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
29. 29.⚖️ 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 funnel (c) how clear the water is (d) the same muddy water
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) turmeric powder (d) cotton or cloth
31. 31.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) salt from sea water (c) husk from rice grain (d) chaff from wheat grain
32. 32.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
33. 33.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) yes, all of it (d) it turns to sand
34. 34.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the same muddy water (d) the same glass
37. 37.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
38. 38.🫗 Which of these is done by sieving? (a) mud from water (b) chaff from wheat grain (c) small stones from dal (d) gravel from fine sand
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a funnel (d) muddy water

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