Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 757 · 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? Which of these is what we measure? (a) how clear the water is (b) the same glass (c) the filter material (d) the same muddy water
2. 2.True or false: yeast is needed for the muddy water filter. (a) True (b) False
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) muddy water (d) a balloon
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) turmeric powder (d) a funnel
5. 5.True or false: bran from wheat flour is done by winnowing. (a) False (b) True
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
8. 8.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves stay behind (d) leaves pass through
11. 11.🫗 How do we separate bran from wheat flour? (a) filtering (b) handpicking (c) sieving (d) evaporating
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.True or false: bad grains from rice is done by winnowing. (a) False (b) True
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) sand and pebbles (d) a magnet
15. 15.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
16. 16.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) filtering (c) sieving (d) evaporating
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a clean glass (d) a mirror
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a funnel (d) a magnet
19. 19.⚖️ 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 change it (c) we keep it the same
20. 20.⚖️ 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 funnel (c) the same muddy water (d) the amount poured
21. 21.🫗 Which of these is done by filtering? (a) salt from sea water (b) chaff from wheat grain (c) sugar from sugar water (d) tea leaves from tea
22. 22.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
23. 23.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
24. 24.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
25. 25.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
26. 26.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) bad grains from rice (c) mud from water (d) gravel from fine sand
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) turmeric powder (d) sand and pebbles
28. 28.🔮 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
29. 29.⚖️ 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 change it (b) we keep it the same (c) we measure it
30. 30.🧺 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 battery cell (d) sand and pebbles
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) yeast
32. 32.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
33. 33.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
34. 34.⚖️ 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) False (b) True
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
36. 36.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) cotton or cloth (d) a magnet
38. 38.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) yes, if it is clear (d) no, germs may stay
39. 39.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
40. 40.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier

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