Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 967 · 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.⚖️ 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 change it (c) we keep it the same
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) muddy water (c) a battery cell (d) yeast
3. 3.⚖️ 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
4. 4.🫗 How do we separate chaff from wheat grain? (a) sieving (b) winnowing (c) filtering (d) evaporating
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
6. 6.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
8. 8.⚖️ 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 measure it (c) we change it
9. 9.True or false: husk from rice grain is done by winnowing. (a) False (b) True
10. 10.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
12. 12.🔮 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
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
15. 15.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
16. 16.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) a magnet
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) a clean glass (d) cotton or cloth
19. 19.🫗 How do we separate bad grains from rice? (a) sieving (b) winnowing (c) handpicking (d) evaporating
20. 20.🫗 How do we separate small stones from dal? (a) winnowing (b) handpicking (c) sieving (d) filtering
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same funnel (c) the filter material (d) how clear the water is
22. 22.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the amount poured (c) the filter material (d) how clear the water is
25. 25.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
26. 26.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
27. 27.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
28. 28.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a battery cell (c) sand and pebbles (d) cotton or cloth
30. 30.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) small stones from dal (c) gravel from fine sand (d) sugar from sugar water
31. 31.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) yeast (d) a clean glass
33. 33.🫗 Which of these is done by sieving? (a) salt from sea water (b) small stones from dal (c) gravel from fine sand (d) husk from rice grain
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) a clean glass (d) muddy water
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) False (b) True
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
37. 37.True or false: gravel from fine sand is done by evaporating. (a) False (b) True
38. 38.True or false: husk from rice grain is done by handpicking. (a) False (b) True
39. 39.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
40. 40.🫗 How do we separate mud from water? (a) evaporating (b) handpicking (c) sieving (d) filtering

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