Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 266 · 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? Which of these is kept the same? (a) the filter material (b) the same glass (c) how clear the water is
2. 2.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
3. 3.True or false: husk from rice grain is done by sieving. (a) False (b) True
4. 4.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
5. 5.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
6. 6.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) sugar from sugar water (c) husk from rice grain (d) bad grains from rice
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) no, salt passes through (d) it turns to sugar
8. 8.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) gravel from fine sand (c) bad grains from rice (d) tea leaves from tea
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
10. 10.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
11. 11.⚖️ 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
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) yeast (c) a magnet (d) a mirror
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) a clean glass (d) a funnel
15. 15.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
16. 16.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
17. 17.🧺 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 balloon (d) muddy water
18. 18.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) sugar from sugar water (c) chaff from wheat grain (d) bran from wheat flour
19. 19.True or false: tea leaves from tea is done by sieving. (a) False (b) True
20. 20.True or false: bad grains from rice is done by evaporating. (a) False (b) True
21. 21.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
22. 22.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) filtering (c) evaporating (d) sieving
23. 23.True or false: mud from water is done by filtering. (a) True (b) False
24. 24.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) a mirror (d) a funnel
26. 26.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
27. 27.⚖️ 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
28. 28.⚖️ 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 change it (b) we measure it (c) we keep it the same
29. 29.⚖️ 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
30. 30.🫗 How do we separate sugar from sugar water? (a) evaporating (b) sieving (c) handpicking (d) winnowing
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) muddy water (c) a funnel (d) sand and pebbles
32. 32.🫗 How do we separate tea leaves from tea? (a) handpicking (b) evaporating (c) winnowing (d) filtering
33. 33.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
37. 37.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
38. 38.🔮 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
39. 39.🫗 How do we separate bad grains from rice? (a) sieving (b) filtering (c) handpicking (d) winnowing
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the filter material (d) the same glass

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