Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 821 · 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.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) how clear the water is (c) the filter material (d) the same muddy water
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) yeast (d) muddy water
5. 5.⚖️ 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
6. 6.⚖️ 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 amount poured (c) the filter material
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) yeast (d) a funnel
9. 9.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
10. 10.🫗 Which of these is done by filtering? (a) small stones from dal (b) bran from wheat flour (c) salt from sea water (d) tea leaves from tea
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) sand and pebbles (d) cotton or cloth
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a magnet (d) cotton or cloth
13. 13.True or false: tea leaves from tea is done by filtering. (a) True (b) False
14. 14.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
15. 15.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
16. 16.🫗 How do we separate tea leaves from tea? (a) sieving (b) winnowing (c) handpicking (d) filtering
17. 17.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the filter adds soap (d) the water evaporates
18. 18.🫗 Which of these is done by sieving? (a) husk from rice grain (b) sugar from sugar water (c) bran from wheat flour (d) salt from sea water
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a mirror (d) a clean glass
20. 20.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) muddy water (d) cotton or cloth
22. 22.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) turmeric powder (d) cotton or cloth
25. 25.True or false: bad grains from rice is done by handpicking. (a) False (b) True
26. 26.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
27. 27.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
28. 28.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) bran from wheat flour (c) chaff from wheat grain (d) salt from sea water
29. 29.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
30. 30.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
31. 31.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
32. 32.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a battery cell (d) a funnel
34. 34.⚖️ 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 amount poured (c) the filter material (d) the same funnel
35. 35.True or false: chaff from wheat grain is done by evaporating. (a) False (b) True
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) cotton or cloth (d) turmeric powder
38. 38.True or false: mud from water is done by evaporating. (a) False (b) True
39. 39.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
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) a mirror (d) a funnel

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