Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 457 · 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 clean glass is needed for the muddy water filter. (a) False (b) True
2. 2.⚖️ 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 same funnel (c) how clear the water is
3. 3.⚖️ 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
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) muddy water (c) sand and pebbles (d) cotton or cloth
5. 5.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) winnowing (d) sieving
6. 6.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) sugar from sugar water (c) small stones from dal (d) mud from water
7. 7.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
8. 8.⚖️ 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 same glass (c) how clear the water is (d) the same funnel
9. 9.🫗 How do we separate small stones from dal? (a) filtering (b) evaporating (c) sieving (d) handpicking
10. 10.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a mirror (d) a funnel
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.True or false: gravel from fine sand is done by sieving. (a) False (b) True
13. 13.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) turmeric powder (d) sand and pebbles
15. 15.⚖️ 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
16. 16.⚖️ 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) True (b) False
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.🔮 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
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) muddy water (d) a funnel
21. 21.⚖️ 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
22. 22.True or false: husk from rice grain is done by winnowing. (a) True (b) False
23. 23.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) winnowing (d) evaporating
24. 24.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
26. 26.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
27. 27.🔍 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 turns to sand (d) it dissolves
28. 28.⚖️ 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
29. 29.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
30. 30.True or false: bad grains from rice is done by evaporating. (a) True (b) False
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) muddy water (d) yeast
32. 32.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
33. 33.🛟 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
34. 34.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) sugar from sugar water (d) tea leaves from tea
35. 35.⚖️ 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) False (b) True
36. 36.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) winnowing (d) handpicking
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
38. 38.🫗 How do we separate salt from sea water? (a) evaporating (b) sieving (c) handpicking (d) filtering
39. 39.True or false: bad grains from rice is done by sieving. (a) False (b) True
40. 40.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True

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