Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 239 · 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.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) sand and pebbles (d) cotton or cloth
5. 5.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) sand and pebbles (d) cotton or cloth
7. 7.🫗 Which of these is done by filtering? (a) mud from water (b) husk from rice grain (c) small stones from dal (d) bad grains from rice
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a balloon (d) a clean glass
9. 9.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) small stones from dal (c) tea leaves from tea (d) chaff from wheat grain
10. 10.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) bad grains from rice (c) mud from water (d) salt from sea water
11. 11.True or false: yeast is needed for the muddy water filter. (a) True (b) False
12. 12.⚖️ 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 same funnel (c) the same muddy water (d) the filter material
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a clean glass (d) a funnel
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
15. 15.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
16. 16.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
17. 17.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a clean glass (d) a mirror
18. 18.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
19. 19.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a funnel (d) a magnet
21. 21.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) filtering (d) sieving
22. 22.⚖️ 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
23. 23.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) handpicking (d) sieving
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) muddy water (d) a magnet
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) sand and pebbles (d) muddy water
26. 26.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
27. 27.⚖️ 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 measure it (c) we change it
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) yeast (c) a clean glass (d) a funnel
29. 29.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) sieving (d) winnowing
30. 30.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) muddy water (d) a battery cell
32. 32.🫗 How do we separate salt from sea water? (a) sieving (b) evaporating (c) winnowing (d) handpicking
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same glass
34. 34.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
35. 35.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) yes, all of it (d) it turns to sugar
36. 36.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
38. 38.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it

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