Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 168 · 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.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
2. 2.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) mud from water (c) salt from sea water (d) bad grains from rice
3. 3.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) filtering (d) handpicking
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 glass (b) the amount poured (c) the filter material (d) how clear the water is
5. 5.⚖️ 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
6. 6.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.⚖️ 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) False (b) True
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
10. 10.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
11. 11.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
12. 12.⚖️ 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) False (b) True
13. 13.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
14. 14.⚖️ 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 amount poured (c) how clear the water is (d) the filter material
15. 15.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
16. 16.⚖️ 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
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a mirror (c) sand and pebbles (d) a funnel
18. 18.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
19. 19.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) a battery cell (d) a balloon
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
22. 22.True or false: bad grains from rice is done by evaporating. (a) True (b) False
23. 23.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) turmeric powder (d) cotton or cloth
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a balloon (d) sand and pebbles
26. 26.🫗 How do we separate husk from rice grain? (a) evaporating (b) filtering (c) handpicking (d) winnowing
27. 27.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) sugar from sugar water (c) husk from rice grain (d) small stones from dal
28. 28.🧺 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) a magnet
29. 29.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
30. 30.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
31. 31.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
32. 32.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) filtering (d) handpicking
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) yeast (c) sand and pebbles (d) a funnel
34. 34.⚖️ 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 measure it (c) we change it
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
36. 36.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
37. 37.True or false: bad grains from rice is done by handpicking. (a) False (b) True
38. 38.🔮 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
39. 39.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) a mirror

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