Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 859 · 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? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same glass (c) how clear the water is (d) the amount poured
3. 3.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
4. 4.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
5. 5.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) muddy water (d) cotton or cloth
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
10. 10.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it dissolves (d) it sinks to the bottom
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) a balloon
12. 12.⚖️ 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
13. 13.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
14. 14.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) nothing is needed (d) wipe hands on face
15. 15.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) sand and pebbles (d) a funnel
17. 17.⚖️ 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 amount poured
18. 18.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) tea leaves from tea (c) sugar from sugar water (d) salt from sea water
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the filter material (c) the same muddy water (d) the same glass
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a battery cell (d) a clean glass
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 glass (b) the filter material (c) how clear the water is
22. 22.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
23. 23.🫗 How do we separate mud from water? (a) winnowing (b) handpicking (c) evaporating (d) filtering
24. 24.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) turmeric powder (d) muddy water
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a battery cell
26. 26.True or false: chaff from wheat grain is done by evaporating. (a) True (b) False
27. 27.🫗 How do we separate chaff from wheat grain? (a) filtering (b) winnowing (c) handpicking (d) evaporating
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a mirror (c) a clean glass (d) cotton or cloth
29. 29.True or false: bad grains from rice is done by handpicking. (a) True (b) False
30. 30.🫗 How do we separate small stones from dal? (a) sieving (b) evaporating (c) winnowing (d) handpicking
31. 31.🫗 Which of these is done by evaporating? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) bad grains from rice
32. 32.True or false: bran from wheat flour is done by filtering. (a) True (b) False
33. 33.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
34. 34.🫗 How do we separate husk from rice grain? (a) evaporating (b) filtering (c) handpicking (d) winnowing
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a funnel (d) a mirror
36. 36.⚖️ 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 measure it (c) we keep it the same
37. 37.🔮 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
38. 38.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) chaff from wheat grain (c) mud from water (d) husk from rice grain
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) muddy water (d) yeast
40. 40.🫗 How do we separate bad grains from rice? (a) winnowing (b) evaporating (c) handpicking (d) filtering

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