Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 121 · 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.🫗 Which of these is done by evaporating? (a) salt from sea water (b) chaff from wheat grain (c) small stones from dal (d) bad grains from rice
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 filter material (c) the same glass (d) how clear the water is
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) muddy water (d) a clean glass
6. 6.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, if it is cold (d) yes, always
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
8. 8.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) a magnet (d) a mirror
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a battery cell (c) a balloon (d) yeast
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.True or false: bran from wheat flour is done by filtering. (a) True (b) False
13. 13.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) salt from sea water (c) small stones from dal (d) husk from rice grain
14. 14.⚖️ 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
15. 15.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a funnel (d) a magnet
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) yeast
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) yeast (c) cotton or cloth (d) a clean glass
20. 20.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
21. 21.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
22. 22.⚖️ 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) True (b) False
23. 23.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.🫗 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
26. 26.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the same glass (c) the same muddy water (d) how clear the water is
28. 28.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) salt from sea water (c) tea leaves from tea (d) bad grains from rice
29. 29.True or false: small stones from dal is done by filtering. (a) False (b) True
30. 30.True or false: bad grains from rice is done by handpicking. (a) False (b) True
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a balloon (c) muddy water (d) sand and pebbles
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
33. 33.🫗 How do we separate salt from sea water? (a) sieving (b) handpicking (c) filtering (d) evaporating
34. 34.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) bad grains from rice (c) tea leaves from tea (d) chaff from wheat grain
35. 35.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
37. 37.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) mud from water (c) small stones from dal (d) chaff from wheat grain
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a mirror
39. 39.🔮 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
40. 40.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) tea leaves from tea (c) gravel from fine sand (d) bran from wheat flour

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