Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 549 · 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.🫗 How do we separate sugar from sugar water? (a) handpicking (b) evaporating (c) sieving (d) winnowing
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) a funnel (d) cotton or cloth
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
4. 4.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
6. 6.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
7. 7.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
8. 8.⚖️ 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 muddy water (b) the same glass (c) the filter material (d) how clear the water is
9. 9.🫗 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
10. 10.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
11. 11.True or false: sugar from sugar water is done by filtering. (a) True (b) False
12. 12.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
13. 13.🫗 Which of these is done by sieving? (a) bad grains from rice (b) mud from water (c) small stones from dal (d) gravel from fine sand
14. 14.⚖️ 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) True (b) False
15. 15.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
16. 16.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
17. 17.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a balloon (d) sand and pebbles
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) cotton or cloth (d) a balloon
19. 19.⚖️ 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) True (b) False
20. 20.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
21. 21.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) yeast (d) a battery cell
23. 23.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
24. 24.⚖️ 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
25. 25.True or false: husk from rice grain is done by winnowing. (a) True (b) False
26. 26.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) a clean glass (d) a magnet
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) muddy water (d) a clean glass
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) turmeric powder (d) a funnel
31. 31.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
34. 34.True or false: mud from water is done by filtering. (a) True (b) False
35. 35.🧺 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
36. 36.⚖️ 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 measure it (c) we keep it the same
37. 37.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
38. 38.⚖️ 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 filter material (c) the same glass (d) the same muddy water
39. 39.🔍 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
40. 40.⚖️ 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

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