Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 712 · 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.🫗 Which of these is done by winnowing? (a) small stones from dal (b) tea leaves from tea (c) husk from rice grain (d) bad grains from rice
2. 2.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
3. 3.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
4. 4.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) yeast (d) sand and pebbles
5. 5.🧺 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 mirror (d) sand and pebbles
6. 6.⚖️ 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 funnel (b) the same muddy water (c) the filter material (d) the amount poured
7. 7.🫗 Which of these is done by sieving? (a) small stones from dal (b) bran from wheat flour (c) salt from sea water (d) bad grains from rice
8. 8.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
9. 9.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) sieving (c) evaporating (d) handpicking
10. 10.🫗 How do we separate mud from water? (a) evaporating (b) winnowing (c) sieving (d) filtering
11. 11.⚖️ 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) the same glass (c) how clear the water is
12. 12.🔮 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
13. 13.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is clear (d) yes, if it is cold
14. 14.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) mud from water (c) gravel from fine sand (d) chaff from wheat grain
15. 15.True or false: husk from rice grain is done by handpicking. (a) True (b) False
16. 16.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
17. 17.True or false: mud from water is done by filtering. (a) False (b) True
18. 18.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
19. 19.⚖️ 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
20. 20.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
21. 21.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) handpicking (d) filtering
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) muddy water (d) yeast
23. 23.True or false: tea leaves from tea is done by evaporating. (a) False (b) True
24. 24.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a battery cell (d) sand and pebbles
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) a battery cell (d) a funnel
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
28. 28.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) a mirror (d) a balloon
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) cotton or cloth (d) a clean glass
30. 30.⚖️ 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
31. 31.True or false: bad grains from rice is done by filtering. (a) False (b) True
32. 32.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a clean glass (c) muddy water (d) a funnel
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
36. 36.🫗 Which of these is done by winnowing? (a) small stones from dal (b) chaff from wheat grain (c) bad grains from rice (d) salt from sea water
37. 37.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
38. 38.🧺 Do we need a magnet 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? What do we do with “how clear the water is”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) cotton or cloth (d) a magnet

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