Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 468 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) clearer (d) hot
2. 2.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
3. 3.True or false: bad grains from rice is done by evaporating. (a) True (b) False
4. 4.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
5. 5.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) gravel from fine sand (c) husk from rice grain (d) mud from water
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
8. 8.🫗 How do we separate husk from rice grain? (a) filtering (b) evaporating (c) winnowing (d) handpicking
9. 9.🛟 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
10. 10.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
11. 11.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) yes, if it is clear (d) no, germs may stay
12. 12.⚖️ 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
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a magnet (c) a balloon (d) turmeric powder
14. 14.⚖️ 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
15. 15.True or false: yeast is needed for the muddy water filter. (a) False (b) True
16. 16.⚖️ 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
17. 17.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
18. 18.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
20. 20.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) sieving (c) filtering (d) winnowing
21. 21.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
24. 24.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a mirror (d) a funnel
26. 26.⚖️ 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
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) muddy water (d) cotton or cloth
28. 28.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) sugar from sugar water (c) tea leaves from tea (d) chaff from wheat grain
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same muddy water
30. 30.🫗 How do we separate sugar from sugar water? (a) winnowing (b) sieving (c) filtering (d) evaporating
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) muddy water (d) a balloon
32. 32.True or false: mud from water is done by winnowing. (a) False (b) True
33. 33.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
34. 34.🫗 How do we separate small stones from dal? (a) winnowing (b) filtering (c) sieving (d) handpicking
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) yeast (d) cotton or cloth
37. 37.True or false: mud from water is done by evaporating. (a) False (b) True
38. 38.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
39. 39.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True

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