Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 88 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) how clear the water is (c) the same muddy water (d) the filter material
2. 2.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) small stones from dal (c) chaff from wheat grain (d) bad grains from rice
3. 3.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a clean glass (d) a battery cell
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🫗 How do we separate tea leaves from tea? (a) handpicking (b) evaporating (c) filtering (d) winnowing
7. 7.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) a battery cell (d) sand and pebbles
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) sand and pebbles (d) a funnel
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a balloon (d) sand and pebbles
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
12. 12.🔮 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) yes, all of it (d) no, salt passes through
13. 13.🫗 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
14. 14.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
15. 15.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) muddy water (d) turmeric powder
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.True or false: mud from water is done by winnowing. (a) True (b) False
18. 18.🧺 Do we need yeast 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 funnel is what we measure. (a) False (b) True
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) muddy water (c) cotton or cloth (d) a clean glass
21. 21.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
22. 22.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the water evaporates (d) the mud dissolves
23. 23.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
24. 24.🫗 Which of these is done by handpicking? (a) mud from water (b) husk from rice grain (c) bad grains from rice (d) tea leaves from tea
25. 25.🔍 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
26. 26.True or false: bran from wheat flour is done by sieving. (a) True (b) False
27. 27.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
28. 28.🧺 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) muddy water
29. 29.🛟 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
30. 30.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a funnel (d) turmeric powder
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a battery cell
33. 33.⚖️ 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
34. 34.⚖️ 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) the amount poured (c) how clear the water is
35. 35.🫗 How do we separate gravel from fine sand? (a) filtering (b) evaporating (c) sieving (d) winnowing
36. 36.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
37. 37.True or false: sugar from sugar water is done by filtering. (a) True (b) False
38. 38.True or false: bad grains from rice is done by handpicking. (a) True (b) False
39. 39.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
40. 40.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) mud from water (c) husk from rice grain (d) sugar from sugar water

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