Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 338 · 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.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
2. 2.🫗 Which of these is done by evaporating? (a) small stones from dal (b) mud from water (c) husk from rice grain (d) salt from sea water
3. 3.⚖️ 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
4. 4.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) sand and pebbles (c) cotton or cloth (d) a funnel
8. 8.🫗 Which of these is done by handpicking? (a) salt from sea water (b) bad grains from rice (c) bran from wheat flour (d) sugar from sugar water
9. 9.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
11. 11.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) bran from wheat flour (c) small stones from dal (d) chaff from wheat grain
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) the filter material (c) how clear the water is
13. 13.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) winnowing (d) sieving
14. 14.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) cotton or cloth (d) yeast
16. 16.🫗 Which of these is done by filtering? (a) mud from water (b) bran from wheat flour (c) salt from sea water (d) bad grains from rice
17. 17.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it floats on top (d) it turns to sand
18. 18.🔮 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
19. 19.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
20. 20.True or false: salt from sea water is done by handpicking. (a) False (b) True
21. 21.True or false: gravel from fine sand is done by filtering. (a) True (b) False
22. 22.⚖️ 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
23. 23.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
24. 24.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
25. 25.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
26. 26.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) mud from water (c) sugar from sugar water (d) chaff from wheat grain
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) muddy water (d) a clean glass
28. 28.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a balloon (d) muddy water
30. 30.True or false: husk from rice grain is done by winnowing. (a) True (b) False
31. 31.🫗 How do we separate tea leaves from tea? (a) sieving (b) evaporating (c) filtering (d) handpicking
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) muddy water (d) a clean glass
33. 33.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.True or false: turmeric powder is not needed for the muddy water filter. (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.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) yeast (c) muddy water (d) a clean glass
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the amount poured (c) the same funnel (d) the same glass
40. 40.True or false: husk from rice grain is done by filtering. (a) True (b) False

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