Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 625 · 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 done by handpicking? (a) tea leaves from tea (b) bran from wheat flour (c) gravel from fine sand (d) bad grains from rice
2. 2.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
3. 3.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
4. 4.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) handpicking (d) winnowing
5. 5.🫗 How do we separate bad grains from rice? (a) filtering (b) sieving (c) handpicking (d) winnowing
6. 6.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
7. 7.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
8. 8.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a mirror (c) a funnel (d) muddy water
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) muddy water (d) turmeric powder
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) a battery cell
16. 16.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
17. 17.🫗 How do we separate gravel from fine sand? (a) filtering (b) winnowing (c) sieving (d) evaporating
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 amount poured
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
20. 20.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the filter material (c) the same funnel (d) how clear the water is
22. 22.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) muddy water (d) a balloon
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.⚖️ 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
26. 26.⚖️ 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 glass (b) the filter material (c) the same muddy water (d) the amount poured
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) a magnet (d) a funnel
28. 28.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) salt from sea water (c) small stones from dal (d) husk from rice grain
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a balloon
30. 30.⚖️ 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 measure it (b) we keep it the same (c) we change it
31. 31.True or false: mud from water is done by winnowing. (a) False (b) True
32. 32.True or false: bad grains from rice is done by filtering. (a) False (b) True
33. 33.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) muddy water (c) a funnel (d) sand and pebbles
36. 36.🫗 How do we separate bran from wheat flour? (a) sieving (b) filtering (c) handpicking (d) evaporating
37. 37.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
38. 38.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
39. 39.True or false: husk from rice grain is done by evaporating. (a) False (b) True
40. 40.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed

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