Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 177 · 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 does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the mud dissolves (d) the filter adds soap
2. 2.🫗 How do we separate bran from wheat flour? (a) sieving (b) winnowing (c) handpicking (d) evaporating
3. 3.True or false: mud from water is done by handpicking. (a) False (b) True
4. 4.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
5. 5.⚖️ 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 same glass (c) the amount poured (d) the filter material
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
7. 7.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
8. 8.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
9. 9.⚖️ 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 keep it the same (c) we measure it
10. 10.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) muddy water (d) yeast
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) a mirror (d) sand and pebbles
13. 13.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) husk from rice grain (c) tea leaves from tea (d) sugar from sugar water
14. 14.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) yes, all of it (d) it turns to sugar
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
17. 17.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
18. 18.🧺 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 battery cell (d) a funnel
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) cotton or cloth (c) a funnel (d) muddy water
20. 20.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) turmeric powder (d) muddy water
23. 23.🫗 How do we separate bad grains from rice? (a) handpicking (b) winnowing (c) evaporating (d) filtering
24. 24.🧺 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
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) yeast (d) sand and pebbles
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) yeast
27. 27.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a clean glass (d) turmeric powder
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a magnet (d) cotton or cloth
30. 30.True or false: chaff from wheat grain is done by handpicking. (a) True (b) False
31. 31.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) small stones from dal (c) gravel from fine sand (d) chaff from wheat grain
32. 32.🫗 Which of these is done by filtering? (a) bad grains from rice (b) salt from sea water (c) small stones from dal (d) tea leaves from tea
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a magnet (c) a battery cell (d) a balloon
34. 34.True or false: tea leaves from tea is done by filtering. (a) True (b) False
35. 35.True or false: bran from wheat flour is done by sieving. (a) False (b) True
36. 36.True or false: salt from sea water is done by evaporating. (a) True (b) False
37. 37.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
39. 39.True or false: salt from sea water is done by handpicking. (a) True (b) False
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) a clean glass (d) muddy water

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