Separating Mixtures Experiment Worksheet

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

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