Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 343 · 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.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
2. 2.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) winnowing (d) filtering
3. 3.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) tea leaves from tea (c) mud from water (d) bad grains from rice
4. 4.🫗 Which of these is done by handpicking? (a) mud from water (b) tea leaves from tea (c) small stones from dal (d) gravel from fine sand
5. 5.True or false: bad grains from rice is done by filtering. (a) False (b) True
6. 6.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) a clean glass (d) a funnel
7. 7.True or false: yeast is needed for the muddy water filter. (a) False (b) True
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) muddy water (d) a clean glass
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🔮 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
11. 11.True or false: mud from water is done by filtering. (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) how clear the water is (b) the same muddy water (c) the filter material (d) the same glass
13. 13.🔍 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
14. 14.⚖️ 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
15. 15.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
16. 16.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a mirror (d) muddy water
18. 18.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
19. 19.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) husk from rice grain (c) gravel from fine sand (d) tea leaves from tea
20. 20.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) a clean glass (d) a funnel
22. 22.True or false: bran from wheat flour is done by sieving. (a) False (b) True
23. 23.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) sand and pebbles (d) a mirror
25. 25.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) cotton or cloth (d) a clean glass
27. 27.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
28. 28.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
29. 29.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.True or false: bran from wheat flour is done by evaporating. (a) False (b) True
32. 32.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
33. 33.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) bad grains from rice (c) small stones from dal (d) chaff from wheat grain
34. 34.⚖️ 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) how clear the water is (c) the amount poured (d) the same funnel
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
36. 36.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
37. 37.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
38. 38.🛟 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
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) muddy water (d) turmeric powder
40. 40.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed

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