Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 114 · 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.🫗 Which of these is done by winnowing? (a) mud from water (b) gravel from fine sand (c) husk from rice grain (d) salt from sea water
2. 2.⚖️ 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 muddy water
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
5. 5.🫗 How do we separate husk from rice grain? (a) evaporating (b) handpicking (c) filtering (d) winnowing
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a balloon (d) a funnel
7. 7.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
8. 8.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates
9. 9.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
10. 10.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
11. 11.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
12. 12.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) filtering (c) handpicking (d) sieving
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a magnet (d) a funnel
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a funnel (c) sand and pebbles (d) cotton or cloth
15. 15.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
16. 16.⚖️ 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
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a balloon (d) muddy water
18. 18.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves stay behind (d) leaves pass through
19. 19.⚖️ 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 same muddy water (c) the same funnel (d) the amount poured
20. 20.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.⚖️ 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 muddy water (b) the filter material (c) how clear the water is (d) the amount poured
23. 23.🧺 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) turmeric powder
24. 24.🔮 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
25. 25.True or false: bran from wheat flour is done by winnowing. (a) False (b) True
26. 26.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) sand and pebbles (d) cotton or cloth
28. 28.🛟 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
29. 29.True or false: sugar from sugar water is done by filtering. (a) False (b) True
30. 30.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
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.⚖️ 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 change it (c) we keep it the same
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) muddy water (d) sand and pebbles
35. 35.🫗 How do we separate sugar from sugar water? (a) evaporating (b) winnowing (c) handpicking (d) sieving
36. 36.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bran from wheat flour (c) tea leaves from tea (d) small stones from dal
37. 37.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a battery cell (c) cotton or cloth (d) muddy water
39. 39.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
40. 40.True or false: yeast is needed for the muddy water filter. (a) False (b) True

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