Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 533 · 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.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
2. 2.⚖️ 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 muddy water (b) the same funnel (c) the amount poured (d) the filter material
3. 3.🫗 Which of these is done by evaporating? (a) small stones from dal (b) tea leaves from tea (c) husk from rice grain (d) sugar from sugar water
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the amount poured (d) the same muddy water
5. 5.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) handpicking (d) winnowing
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) a funnel (d) sand and pebbles
7. 7.True or false: gravel from fine sand is done by filtering. (a) False (b) True
8. 8.🫗 How do we separate tea leaves from tea? (a) winnowing (b) sieving (c) filtering (d) evaporating
9. 9.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
10. 10.🫗 How do we separate gravel from fine sand? (a) sieving (b) winnowing (c) filtering (d) handpicking
11. 11.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
12. 12.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
13. 13.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) gravel from fine sand (c) sugar from sugar water (d) bad grains from rice
14. 14.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) salt from sea water (c) bad grains from rice (d) bran from wheat flour
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) turmeric powder (d) a funnel
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
17. 17.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
18. 18.True or false: mud from water is done by filtering. (a) False (b) True
19. 19.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
20. 20.⚖️ 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
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) cotton or cloth (d) a funnel
22. 22.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) no, germs may stay (d) yes, always
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a mirror (c) cotton or cloth (d) muddy water
24. 24.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
25. 25.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
26. 26.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
28. 28.True or false: yeast is needed for the muddy water filter. (a) True (b) False
29. 29.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) a balloon (d) a magnet
30. 30.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
32. 32.⚖️ 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
33. 33.🫗 Which of these is done by winnowing? (a) salt from sea water (b) gravel from fine sand (c) husk from rice grain (d) bad grains from rice
34. 34.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a battery cell (d) cotton or cloth
36. 36.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) yeast (d) a funnel
37. 37.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
39. 39.🫗 Which of these is done by evaporating? (a) mud from water (b) salt from sea water (c) small stones from dal (d) tea leaves from tea
40. 40.⚖️ 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

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