Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 354 · 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? What do we do with “the filter material”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a funnel (d) a mirror
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
4. 4.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
5. 5.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
6. 6.⚖️ 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
7. 7.⚖️ 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 muddy water (d) how clear the water is
8. 8.True or false: bran from wheat flour is done by handpicking. (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 funnel”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.True or false: bad grains from rice is done by filtering. (a) True (b) False
11. 11.True or false: chaff from wheat grain is done by evaporating. (a) True (b) False
12. 12.True or false: yeast is needed for the muddy water filter. (a) True (b) False
13. 13.True or false: bran from wheat flour is done by sieving. (a) True (b) False
14. 14.🔍 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
15. 15.🫗 Which of these is done by filtering? (a) husk from rice grain (b) bad grains from rice (c) sugar from sugar water (d) mud from water
16. 16.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
17. 17.True or false: tea leaves from tea is done by filtering. (a) True (b) False
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) sand and pebbles (d) yeast
19. 19.🔮 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
20. 20.🫗 Which of these is done by handpicking? (a) salt from sea water (b) small stones from dal (c) gravel from fine sand (d) mud from water
21. 21.True or false: small stones from dal is done by handpicking. (a) False (b) True
22. 22.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) bad grains from rice (c) salt from sea water (d) chaff from wheat grain
23. 23.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
24. 24.🫗 Which of these is done by evaporating? (a) mud from water (b) tea leaves from tea (c) gravel from fine sand (d) sugar from sugar water
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) yeast (c) a battery cell (d) a mirror
26. 26.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
29. 29.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) muddy water (d) a clean glass
31. 31.True or false: bad grains from rice is done by handpicking. (a) True (b) False
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a clean glass (d) muddy water
33. 33.⚖️ 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 same glass
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a funnel (d) a battery cell
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) a funnel (d) sand and pebbles
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) cotton or cloth (c) sand and pebbles (d) muddy water
37. 37.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) tea leaves from tea (c) chaff from wheat grain (d) small stones from dal
38. 38.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) a mirror (d) muddy water
39. 39.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
40. 40.True or false: a funnel is needed for the muddy water filter. (a) True (b) False

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