Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 44 · 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.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) gravel from fine sand (c) bran from wheat flour (d) salt from sea water
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the amount poured (c) the same funnel (d) how clear the water is
4. 4.True or false: bad grains from rice is done by filtering. (a) False (b) True
5. 5.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sugar (d) it turns to sand
6. 6.True or false: gravel from fine sand is done by winnowing. (a) True (b) False
7. 7.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bad grains from rice (c) bran from wheat flour (d) tea leaves from tea
8. 8.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
9. 9.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) sugar from sugar water (c) chaff from wheat grain (d) small stones from dal
10. 10.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
12. 12.⚖️ 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
13. 13.🫗 Which of these is done by handpicking? (a) mud from water (b) salt from sea water (c) small stones from dal (d) chaff from wheat grain
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
15. 15.⚖️ 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
16. 16.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
17. 17.True or false: small stones from dal is done by filtering. (a) False (b) True
18. 18.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) turmeric powder (d) a magnet
20. 20.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) small stones from dal (c) salt from sea water (d) gravel from fine sand
21. 21.🧺 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) sand and pebbles
22. 22.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) yeast (d) cotton or cloth
24. 24.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) a balloon (d) sand and pebbles
26. 26.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
27. 27.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) bran from wheat flour (c) gravel from fine sand (d) mud from water
28. 28.⚖️ 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 same muddy water (c) the filter material
29. 29.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
30. 30.⚖️ 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 keep it the same (b) we change it (c) we measure it
31. 31.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a clean glass (c) cotton or cloth (d) sand and pebbles
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.⚖️ 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
35. 35.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) cotton or cloth (d) a mirror
37. 37.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) bran from wheat flour (c) sugar from sugar water (d) bad grains from rice
38. 38.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a clean glass (c) a magnet (d) a mirror
39. 39.True or false: salt from sea water is done by handpicking. (a) False (b) True
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a balloon

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