Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 227 · 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) how clear the water is (b) the amount poured (c) the filter material (d) the same glass
2. 2.⚖️ 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) False (b) True
3. 3.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a mirror (d) a clean glass
5. 5.True or false: husk from rice grain is done by winnowing. (a) False (b) True
6. 6.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) yeast (d) muddy water
8. 8.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
9. 9.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
10. 10.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
11. 11.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a funnel (d) a balloon
12. 12.⚖️ 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
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a clean glass (c) cotton or cloth (d) sand and pebbles
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a clean glass (d) turmeric powder
15. 15.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
16. 16.🔮 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
17. 17.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
18. 18.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) sugar from sugar water (c) tea leaves from tea (d) chaff from wheat grain
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
20. 20.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
21. 21.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
22. 22.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) winnowing (d) evaporating
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 filtering? (a) mud from water (b) salt from sea water (c) husk from rice grain (d) bran from wheat flour
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
26. 26.🛟 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
27. 27.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
28. 28.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
30. 30.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a mirror (c) yeast (d) turmeric powder
31. 31.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
32. 32.🫗 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
33. 33.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) husk from rice grain (c) chaff from wheat grain (d) gravel from fine sand
34. 34.⚖️ 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
35. 35.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) sugar from sugar water (c) mud from water (d) bran from wheat flour
36. 36.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
37. 37.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) husk from rice grain (c) sugar from sugar water (d) bad grains from rice
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 clean glass (d) a mirror

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