Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 191 · 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.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
2. 2.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) sugar from sugar water (c) husk from rice grain (d) small stones from dal
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the same glass (d) how clear the water is
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the filter material (c) the amount poured (d) how clear the water is
8. 8.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a funnel (d) a clean glass
10. 10.True or false: salt from sea water is done by evaporating. (a) False (b) True
11. 11.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
12. 12.True or false: bran from wheat flour is done by sieving. (a) False (b) True
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a battery cell (d) muddy water
14. 14.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) bad grains from rice (c) tea leaves from tea (d) husk from rice grain
15. 15.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
16. 16.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) tea leaves from tea (c) salt from sea water (d) bran from wheat flour
17. 17.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
18. 18.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a mirror (d) cotton or cloth
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a funnel (c) cotton or cloth (d) muddy water
20. 20.🫗 Which of these is done by filtering? (a) salt from sea water (b) small stones from dal (c) tea leaves from tea (d) gravel from fine sand
21. 21.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
22. 22.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
23. 23.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
24. 24.⚖️ 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
25. 25.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
26. 26.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a balloon (d) sand and pebbles
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a funnel (d) turmeric powder
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
30. 30.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
31. 31.⚖️ 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) False (b) True
32. 32.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) evaporating (d) filtering
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) sand and pebbles (d) a balloon
35. 35.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
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 measure it (b) we keep it the same (c) we change it
37. 37.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it turns to sand (d) it floats on top
38. 38.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) a battery cell (d) a clean glass
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) sand and pebbles (d) yeast
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a mirror (d) a funnel

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