Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 47 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) turmeric powder (d) muddy water
2. 2.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
3. 3.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
4. 4.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) muddy water (d) turmeric powder
7. 7.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) sieving (d) handpicking
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.⚖️ 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) True (b) False
11. 11.⚖️ 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 change it (c) we keep it the same
12. 12.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates
13. 13.🫗 How do we separate tea leaves from tea? (a) winnowing (b) handpicking (c) sieving (d) filtering
14. 14.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
15. 15.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
16. 16.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) evaporating (d) filtering
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a clean glass (c) a funnel (d) cotton or cloth
18. 18.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
19. 19.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) bad grains from rice (c) chaff from wheat grain (d) gravel from fine sand
20. 20.🔮 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
21. 21.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
22. 22.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
23. 23.⚖️ 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
24. 24.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
25. 25.🫗 How do we separate mud from water? (a) winnowing (b) handpicking (c) evaporating (d) filtering
26. 26.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) small stones from dal (c) salt from sea water (d) tea leaves from tea
27. 27.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a battery cell (d) cotton or cloth
29. 29.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
30. 30.🫗 How do we separate small stones from dal? (a) sieving (b) handpicking (c) winnowing (d) filtering
31. 31.⚖️ 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) False (b) True
32. 32.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
33. 33.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) tea leaves from tea (c) bad grains from rice (d) sugar from sugar water
34. 34.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) cotton or cloth (c) a clean glass (d) sand and pebbles
38. 38.⚖️ 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) False (b) True
39. 39.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) winnowing (d) sieving
40. 40.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed

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