Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 589 · 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? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the filter material (d) the amount poured
2. 2.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a magnet (d) sand and pebbles
4. 4.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
5. 5.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) small stones from dal (c) mud from water (d) bran from wheat flour
6. 6.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) muddy water (d) a balloon
7. 7.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
8. 8.⚖️ 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 glass (c) the filter material (d) how clear the water is
9. 9.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
10. 10.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) sieving (d) handpicking
11. 11.🫗 How do we separate mud from water? (a) handpicking (b) sieving (c) filtering (d) evaporating
12. 12.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) mud from water (c) gravel from fine sand (d) bad grains from rice
13. 13.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
14. 14.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
15. 15.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a clean glass (d) yeast
17. 17.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) cotton or cloth (c) a clean glass (d) muddy water
19. 19.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) sieving (d) winnowing
20. 20.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) handpicking (d) evaporating
21. 21.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
22. 22.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
23. 23.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
24. 24.🫗 Which of these is done by winnowing? (a) salt from sea water (b) small stones from dal (c) bran from wheat flour (d) husk from rice grain
25. 25.⚖️ 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) True (b) False
26. 26.⚖️ 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 change it (c) we measure it
27. 27.⚖️ 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) the same muddy water (c) how clear the water is
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) a magnet (d) cotton or cloth
29. 29.🛟 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
30. 30.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
31. 31.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
32. 32.True or false: bad grains from rice is done by sieving. (a) True (b) False
33. 33.True or false: husk from rice grain is done by sieving. (a) False (b) True
34. 34.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
35. 35.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
36. 36.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) small stones from dal (c) husk from rice grain (d) bad grains from rice
37. 37.True or false: mud from water is done by winnowing. (a) False (b) True
38. 38.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
39. 39.🫗 How do we separate sugar from sugar water? (a) evaporating (b) sieving (c) handpicking (d) filtering
40. 40.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed

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