Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 982 · 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.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
2. 2.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
4. 4.⚖️ 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
5. 5.⚖️ 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 amount poured
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the amount poured (c) how clear the water is (d) the same funnel
7. 7.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) leaves pass through (d) tea stays behind
8. 8.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
9. 9.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it sinks to the bottom (d) it floats on top
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.🫗 How do we separate bran from wheat flour? (a) handpicking (b) winnowing (c) sieving (d) evaporating
12. 12.🫗 Which of these is done by filtering? (a) husk from rice grain (b) mud from water (c) small stones from dal (d) chaff from wheat grain
13. 13.True or false: husk from rice grain is done by evaporating. (a) False (b) True
14. 14.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
15. 15.⚖️ 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 measure it (b) we change it (c) we keep it the same
16. 16.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
17. 17.🫗 Which of these is done by winnowing? (a) salt from sea water (b) husk from rice grain (c) mud from water (d) gravel from fine sand
18. 18.⚖️ 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
19. 19.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
20. 20.True or false: mud from water is done by filtering. (a) True (b) False
21. 21.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
22. 22.True or false: bran from wheat flour is done by sieving. (a) True (b) False
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a magnet (d) yeast
24. 24.🫗 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
25. 25.🫗 How do we separate bad grains from rice? (a) filtering (b) sieving (c) handpicking (d) winnowing
26. 26.True or false: chaff from wheat grain is done by winnowing. (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) cotton or cloth (c) muddy water (d) a funnel
28. 28.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) sand and pebbles (d) cotton or cloth
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a balloon (c) muddy water (d) a funnel
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
32. 32.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
33. 33.⚖️ 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 funnel (b) how clear the water is (c) the same muddy water (d) the filter material
34. 34.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) tea leaves from tea (c) chaff from wheat grain (d) bad grains from rice
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) cotton or cloth (d) muddy water
36. 36.True or false: salt from sea water is done by evaporating. (a) False (b) True
37. 37.🫗 How do we separate mud from water? (a) filtering (b) evaporating (c) sieving (d) handpicking
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a battery cell (c) a clean glass (d) sand and pebbles
39. 39.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
40. 40.True or false: small stones from dal is done by sieving. (a) True (b) False

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