Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 119 · 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 evaporating? (a) bran from wheat flour (b) chaff from wheat grain (c) small stones from dal (d) salt from sea water
2. 2.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
3. 3.⚖️ 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) how clear the water is (c) the same funnel (d) the same glass
4. 4.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the water (d) the salt
5. 5.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
6. 6.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, always (d) yes, if it is cold
7. 7.🛟 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
8. 8.🔮 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
9. 9.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
10. 10.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a clean glass (d) a mirror
11. 11.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
12. 12.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) a funnel (d) a clean glass
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a magnet (d) a funnel
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) turmeric powder (d) cotton or cloth
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
17. 17.⚖️ 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 change it (c) we keep it the same
18. 18.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
19. 19.🔮 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
20. 20.⚖️ 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
21. 21.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
22. 22.⚖️ 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
23. 23.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a funnel (d) a magnet
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) turmeric powder
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a battery cell (d) cotton or cloth
28. 28.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) sand and pebbles (d) a mirror
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) yeast
30. 30.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it turns to sand (d) it floats on top
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same muddy water (c) the filter material
32. 32.🫗 How do we separate small stones from dal? (a) evaporating (b) winnowing (c) filtering (d) handpicking
33. 33.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ 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 same glass (c) the filter material (d) how clear the water is
35. 35.🧺 Do we need yeast 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? True or false: the filter material is kept the same. (a) False (b) True
37. 37.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
38. 38.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) filtering (d) sieving
39. 39.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
40. 40.True or false: mud from water is done by filtering. (a) True (b) False

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