Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 535 · 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: a mirror is not needed for the muddy water filter. (a) True (b) False
2. 2.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.🫗 How do we separate salt from sea water? (a) winnowing (b) sieving (c) filtering (d) evaporating
5. 5.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) winnowing (d) sieving
6. 6.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
7. 7.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) small stones from dal (c) sugar from sugar water (d) bran from wheat flour
8. 8.True or false: a balloon is 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? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
11. 11.🫗 Which of these is done by filtering? (a) salt from sea water (b) mud from water (c) bran from wheat flour (d) gravel from fine sand
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a clean glass (c) muddy water (d) sand and pebbles
13. 13.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) turmeric powder (d) a battery cell
15. 15.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
16. 16.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a clean glass (c) turmeric powder (d) a balloon
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) cotton or cloth (d) turmeric powder
19. 19.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
20. 20.🫗 How do we separate bran from wheat flour? (a) filtering (b) evaporating (c) sieving (d) winnowing
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.⚖️ 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 change it (b) we measure it (c) we keep it the same
24. 24.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) sand and pebbles (d) cotton or cloth
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a funnel (d) a clean glass
27. 27.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
28. 28.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
29. 29.True or false: tea leaves from tea is done by filtering. (a) False (b) True
30. 30.⚖️ 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
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
32. 32.🫗 How do we separate mud from water? (a) sieving (b) filtering (c) handpicking (d) winnowing
33. 33.True or false: chaff from wheat grain is done by evaporating. (a) False (b) True
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a balloon (d) cotton or cloth
35. 35.⚖️ 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
36. 36.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is hot (d) clear water is sweet
37. 37.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) mud from water (c) salt from sea water (d) husk from rice grain
38. 38.🫗 Which of these is done by sieving? (a) bad grains from rice (b) husk from rice grain (c) salt from sea water (d) gravel from fine sand
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) a funnel (d) muddy water
40. 40.True or false: bad grains from rice is done by evaporating. (a) True (b) False

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