Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 944 · 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: turmeric powder is not needed for the muddy water filter. (a) False (b) True
2. 2.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
3. 3.🛟 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
4. 4.⚖️ 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) the same muddy water (d) how clear the water is
5. 5.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) husk from rice grain (c) sugar from sugar water (d) bad grains from rice
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.🫗 Which of these is done by evaporating? (a) small stones from dal (b) bran from wheat flour (c) mud from water (d) salt from sea water
8. 8.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
9. 9.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) filtering (d) handpicking
10. 10.🫗 Which of these is done by sieving? (a) salt from sea water (b) bran from wheat flour (c) tea leaves from tea (d) sugar from sugar water
11. 11.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
12. 12.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
13. 13.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
14. 14.⚖️ 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
15. 15.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) a battery cell
17. 17.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
18. 18.True or false: salt from sea water is done by evaporating. (a) False (b) True
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 measure it (b) we change it (c) we keep it the same
20. 20.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
21. 21.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) chaff from wheat grain (c) tea leaves from tea (d) gravel from fine sand
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
23. 23.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
27. 27.⚖️ 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 measure it (b) we keep it the same (c) we change it
28. 28.True or false: bad grains from rice is done by handpicking. (a) True (b) False
29. 29.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
30. 30.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
31. 31.⚖️ 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 glass
32. 32.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) gravel from fine sand (c) sugar from sugar water (d) small stones from dal
33. 33.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
34. 34.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a magnet (d) sand and pebbles
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
37. 37.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
38. 38.🫗 How do we separate bran from wheat flour? (a) sieving (b) filtering (c) handpicking (d) evaporating
39. 39.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
40. 40.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind

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