Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 567 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) muddy water (d) a clean glass
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) a clean glass (d) sand and pebbles
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a balloon (c) sand and pebbles (d) muddy water
4. 4.⚖️ 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) how clear the water is (c) the filter material (d) the amount poured
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
6. 6.🫗 Which of these is done by handpicking? (a) mud from water (b) bad grains from rice (c) bran from wheat flour (d) gravel from fine sand
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a clean glass (d) a magnet
8. 8.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a magnet (c) yeast (d) a battery cell
9. 9.🧺 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 funnel (d) yeast
10. 10.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) sieving (d) winnowing
11. 11.True or false: gravel from fine sand is done by sieving. (a) False (b) True
12. 12.🫗 How do we separate bran from wheat flour? (a) evaporating (b) sieving (c) filtering (d) winnowing
13. 13.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
15. 15.True or false: gravel from fine sand is done by evaporating. (a) True (b) False
16. 16.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) a funnel (d) a magnet
17. 17.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
18. 18.🫗 How do we separate sugar from sugar water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
19. 19.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it turns to sand (d) it floats on top
20. 20.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a magnet (d) a funnel
23. 23.⚖️ 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
24. 24.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
25. 25.⚖️ 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) False (b) True
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🫗 How do we separate gravel from fine sand? (a) sieving (b) evaporating (c) winnowing (d) filtering
28. 28.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) sand and pebbles (d) cotton or cloth
31. 31.⚖️ 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) the filter material (c) how clear the water is (d) the same muddy water
32. 32.True or false: small stones from dal is done by winnowing. (a) True (b) False
33. 33.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ 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
35. 35.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
36. 36.🫗 How do we separate chaff from wheat grain? (a) sieving (b) filtering (c) winnowing (d) evaporating
37. 37.True or false: tea leaves from tea is done by filtering. (a) False (b) True
38. 38.True or false: mud from water is done by handpicking. (a) True (b) False
39. 39.⚖️ 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 measure it (c) we keep it the same
40. 40.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay

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