Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 377 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) sand and pebbles (d) a clean glass
2. 2.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
3. 3.⚖️ 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 keep it the same (b) we measure it (c) we change it
4. 4.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
5. 5.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the filter adds soap (d) the water evaporates
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) filtering (d) sieving
8. 8.True or false: salt from sea water is done by evaporating. (a) True (b) False
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.True or false: bad grains from rice is done by handpicking. (a) False (b) True
11. 11.⚖️ 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
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
13. 13.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
14. 14.⚖️ 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
15. 15.🔍 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
16. 16.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
17. 17.⚖️ 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
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) sand and pebbles (d) a clean glass
19. 19.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
20. 20.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
21. 21.🧺 Do we need a mirror 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? Which of these is the one thing we change? (a) how clear the water is (b) the same muddy water (c) the amount poured (d) the filter material
23. 23.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) small stones from dal (c) bad grains from rice (d) mud from water
24. 24.⚖️ 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
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) a mirror
26. 26.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a magnet (d) a funnel
28. 28.🫗 How do we separate tea leaves from tea? (a) handpicking (b) filtering (c) sieving (d) evaporating
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
30. 30.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
31. 31.🧺 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 clean glass
32. 32.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
33. 33.True or false: bad grains from rice is done by sieving. (a) True (b) False
34. 34.True or false: yeast is not needed for the muddy water filter. (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) how clear the water is (b) the filter material (c) the same glass
36. 36.🫗 How do we separate small stones from dal? (a) evaporating (b) sieving (c) handpicking (d) winnowing
37. 37.True or false: salt from sea water is done by handpicking. (a) False (b) True
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
39. 39.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) yes, all of it (d) it turns to sugar
40. 40.🫗 Which of these is done by handpicking? (a) salt from sea water (b) chaff from wheat grain (c) tea leaves from tea (d) small stones from dal

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