Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 332 · 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.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) yes, always (d) no, germs may stay
2. 2.⚖️ 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
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) sand and pebbles (d) a clean glass
4. 4.🫗 Which of these is done by sieving? (a) small stones from dal (b) gravel from fine sand (c) bad grains from rice (d) mud from water
5. 5.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
6. 6.⚖️ 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 change it (c) we keep it the same
7. 7.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) filtering (d) sieving
8. 8.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) a funnel (d) cotton or cloth
10. 10.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
11. 11.🫗 Which of these is done by handpicking? (a) mud from water (b) salt from sea water (c) bad grains from rice (d) sugar from sugar water
12. 12.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
13. 13.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) a magnet (d) sand and pebbles
15. 15.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
16. 16.⚖️ 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
17. 17.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) sieving (d) winnowing
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
19. 19.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
20. 20.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) tea leaves from tea (c) husk from rice grain (d) chaff from wheat grain
21. 21.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) handpicking (d) winnowing
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a mirror
23. 23.True or false: bad grains from rice is done by handpicking. (a) True (b) False
24. 24.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a balloon (d) a funnel
26. 26.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
27. 27.🔮 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
28. 28.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) turmeric powder
31. 31.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
32. 32.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) tea leaves from tea (c) sugar from sugar water (d) husk from rice grain
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the filter material (c) the same glass (d) how clear the water is
34. 34.⚖️ 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) False (b) True
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a magnet (d) a clean glass
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
37. 37.True or false: yeast is needed for the muddy water filter. (a) True (b) False
38. 38.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) a mirror (d) cotton or cloth
40. 40.⚖️ 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 keep it the same (c) we change it

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