Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 420 · 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: chaff from wheat grain is done by winnowing. (a) False (b) True
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) muddy water (c) a battery cell (d) yeast
3. 3.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
4. 4.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
5. 5.🫗 How do we separate gravel from fine sand? (a) evaporating (b) handpicking (c) winnowing (d) sieving
6. 6.⚖️ 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 glass (b) the filter material (c) how clear the water is (d) the amount poured
7. 7.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
8. 8.True or false: salt from sea water is done by evaporating. (a) False (b) True
9. 9.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
10. 10.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) husk from rice grain (c) sugar from sugar water (d) salt from sea water
11. 11.⚖️ 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
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) muddier (d) hot
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) muddy water (d) a clean glass
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the filter material (c) the same funnel (d) how clear the water is
15. 15.🧺 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) turmeric powder
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
17. 17.True or false: mud from water is done by filtering. (a) True (b) False
18. 18.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
19. 19.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
21. 21.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
23. 23.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
24. 24.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) a funnel (d) muddy water
26. 26.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
27. 27.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.⚖️ 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) True (b) False
30. 30.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
32. 32.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) cotton or cloth (c) muddy water (d) sand and pebbles
34. 34.⚖️ 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
35. 35.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) yes, all of it (d) it turns to sand
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.True or false: husk from rice grain is done by filtering. (a) False (b) True
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a balloon (d) sand and pebbles
39. 39.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) tea leaves from tea (c) salt from sea water (d) husk from rice grain
40. 40.True or false: gravel from fine sand is done by evaporating. (a) True (b) False

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