Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 971 · 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.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
4. 4.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) gravel from fine sand (c) salt from sea water (d) bran from wheat flour
5. 5.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a magnet (c) sand and pebbles (d) muddy water
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) the filter material (c) how clear the water is
8. 8.True or false: mud from water is done by filtering. (a) False (b) True
9. 9.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
10. 10.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) husk from rice grain (c) small stones from dal (d) mud from water
11. 11.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
12. 12.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
13. 13.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
15. 15.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the filter adds soap (d) the water evaporates
16. 16.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) chaff from wheat grain (c) mud from water (d) small stones from dal
17. 17.True or false: salt from sea water is done by sieving. (a) False (b) True
18. 18.⚖️ 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
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) a funnel (d) muddy water
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a funnel (c) a clean glass (d) sand and pebbles
22. 22.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
23. 23.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
24. 24.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
25. 25.🛟 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
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) how clear the water is (d) the same glass
27. 27.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) a magnet (d) yeast
28. 28.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bad grains from rice (c) chaff from wheat grain (d) gravel from fine sand
29. 29.🫗 How do we separate tea leaves from tea? (a) sieving (b) filtering (c) winnowing (d) evaporating
30. 30.True or false: bran from wheat flour is done by sieving. (a) False (b) True
31. 31.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
33. 33.True or false: mud from water is done by winnowing. (a) False (b) True
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.⚖️ 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 funnel
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) filtering (d) sieving
38. 38.True or false: salt from sea water is done by filtering. (a) True (b) False
39. 39.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) yeast (d) muddy water

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