Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 963 · 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.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a funnel (d) a magnet
3. 3.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
4. 4.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
5. 5.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
6. 6.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the mud dissolves (d) the water evaporates
7. 7.True or false: bran from wheat flour is done by sieving. (a) False (b) True
8. 8.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
10. 10.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) no, germs may stay (d) yes, always
11. 11.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) small stones from dal (c) mud from water (d) sugar from sugar water
12. 12.True or false: tea leaves from tea is done by filtering. (a) False (b) True
13. 13.🫗 Which of these is done by handpicking? (a) salt from sea water (b) husk from rice grain (c) bad grains from rice (d) bran from wheat flour
14. 14.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
15. 15.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
16. 16.🫗 How do we separate mud from water? (a) winnowing (b) handpicking (c) sieving (d) filtering
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) sand and pebbles (d) turmeric powder
18. 18.True or false: small stones from dal is done by handpicking. (a) False (b) True
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) cotton or cloth (d) a magnet
21. 21.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
22. 22.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
23. 23.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) clearer (d) hot
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bran from wheat flour (c) husk from rice grain (d) bad grains from rice
27. 27.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
28. 28.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a battery cell (d) sand and pebbles
30. 30.🫗 How do we separate sugar from sugar water? (a) filtering (b) sieving (c) winnowing (d) evaporating
31. 31.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the same glass
33. 33.🫗 How do we separate tea leaves from tea? (a) sieving (b) filtering (c) evaporating (d) handpicking
34. 34.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) sieving (d) winnowing
35. 35.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
36. 36.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
37. 37.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.🫗 Which of these is done by handpicking? (a) small stones from dal (b) salt from sea water (c) sugar from sugar water (d) bran from wheat flour
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) a balloon

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