Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 983 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier
2. 2.⚖️ 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 muddy water
3. 3.🫗 How do we separate small stones from dal? (a) filtering (b) evaporating (c) handpicking (d) winnowing
4. 4.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) bran from wheat flour (c) salt from sea water (d) bad grains from rice
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a mirror (d) muddy water
7. 7.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
8. 8.True or false: husk from rice grain is done by winnowing. (a) False (b) True
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) salt from sea water (c) chaff from wheat grain (d) bad grains from rice
11. 11.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
12. 12.⚖️ 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) the same funnel (d) the filter material
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) muddy water (c) a magnet (d) a mirror
14. 14.⚖️ 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) the same glass (c) how clear the water is (d) the same funnel
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) sieving (c) handpicking (d) filtering
17. 17.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
18. 18.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is clear (d) yes, if it is cold
19. 19.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a funnel (c) cotton or cloth (d) sand and pebbles
21. 21.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) filtering (d) evaporating
22. 22.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
23. 23.⚖️ 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) how clear the water is (c) the amount poured
24. 24.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
25. 25.⚖️ 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
26. 26.⚖️ 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) False (b) True
27. 27.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) sand and pebbles (d) muddy water
30. 30.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bad grains from rice (c) chaff from wheat grain (d) tea leaves from tea
31. 31.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) yeast (d) cotton or cloth
33. 33.🫗 How do we separate bran from wheat flour? (a) handpicking (b) sieving (c) winnowing (d) filtering
34. 34.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind
35. 35.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
36. 36.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a balloon (d) a funnel
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) cotton or cloth (d) a magnet
38. 38.🫗 Which of these is done by sieving? (a) mud from water (b) sugar from sugar water (c) bran from wheat flour (d) chaff from wheat grain
39. 39.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it turns to sand (d) it floats on top
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a clean glass (c) sand and pebbles (d) cotton or cloth

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