Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 259 · 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.True or false: small stones from dal is done by evaporating. (a) True (b) False
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
3. 3.🛟 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
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the filter material (c) the amount poured (d) how clear the water is
5. 5.⚖️ 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
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
7. 7.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) tea leaves from tea (c) chaff from wheat grain (d) bad grains from rice
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
9. 9.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) sand and pebbles (d) turmeric powder
10. 10.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) filtering (d) handpicking
11. 11.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) turmeric powder (c) muddy water (d) cotton or cloth
13. 13.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
14. 14.🫗 How do we separate salt from sea water? (a) handpicking (b) winnowing (c) evaporating (d) filtering
15. 15.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) nothing (d) the salt
16. 16.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
17. 17.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
19. 19.⚖️ 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 keep it the same (b) we change it (c) we measure it
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
22. 22.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) a funnel (d) turmeric powder
24. 24.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
25. 25.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
27. 27.⚖️ 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 glass (b) the filter material (c) the same funnel (d) how clear the water is
28. 28.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
29. 29.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) filtering (d) handpicking
30. 30.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
31. 31.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) yeast (d) a clean glass
33. 33.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
34. 34.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) mud from water (c) sugar from sugar water (d) small stones from dal
35. 35.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates
36. 36.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a balloon (d) cotton or cloth
39. 39.True or false: bad grains from rice is done by evaporating. (a) False (b) True
40. 40.🧺 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

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