Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 526 · 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) sand and pebbles (b) yeast (c) a clean glass (d) muddy water
2. 2.True or false: small stones from dal is done by sieving. (a) True (b) False
3. 3.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
4. 4.🫗 How do we separate small stones from dal? (a) evaporating (b) winnowing (c) handpicking (d) sieving
5. 5.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
6. 6.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
7. 7.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a battery cell (d) sand and pebbles
10. 10.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
11. 11.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) sand and pebbles (d) a balloon
13. 13.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) handpicking (d) sieving
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the amount poured (d) the same muddy water
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
16. 16.🫗 How do we separate gravel from fine sand? (a) filtering (b) winnowing (c) handpicking (d) sieving
17. 17.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) no, salt passes through (d) yes, all of it
18. 18.🫗 Which of these is done by evaporating? (a) salt from sea water (b) husk from rice grain (c) mud from water (d) small stones from dal
19. 19.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier
20. 20.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
21. 21.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
22. 22.True or false: bad grains from rice is done by evaporating. (a) True (b) False
23. 23.⚖️ 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) the amount poured (d) how clear the water is
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a clean glass (d) a magnet
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a mirror
26. 26.⚖️ 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
27. 27.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a battery cell (d) sand and pebbles
29. 29.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves pass through (d) leaves stay behind
30. 30.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) winnowing (d) evaporating
31. 31.⚖️ 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
32. 32.True or false: gravel from fine sand is done by sieving. (a) False (b) True
33. 33.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
34. 34.True or false: salt from sea water is done by evaporating. (a) True (b) False
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) a battery cell (d) turmeric powder
36. 36.⚖️ 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) True (b) False
37. 37.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a balloon (d) sand and pebbles
39. 39.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) small stones from dal (c) tea leaves from tea (d) sugar from sugar water
40. 40.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) bad grains from rice (c) chaff from wheat grain (d) mud from water

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