Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 286 · 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 what we measure? (a) the same glass (b) the same muddy water (c) the filter material (d) how clear the water is
2. 2.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
3. 3.🫗 Which of these is done by filtering? (a) small stones from dal (b) salt from sea water (c) gravel from fine sand (d) tea leaves from tea
4. 4.🫗 How do we separate salt from sea water? (a) evaporating (b) filtering (c) winnowing (d) handpicking
5. 5.⚖️ 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 muddy water (c) how clear the water is
6. 6.🫗 How do we separate small stones from dal? (a) filtering (b) evaporating (c) winnowing (d) handpicking
7. 7.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) sugar from sugar water (c) small stones from dal (d) bran from wheat flour
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is hot (d) clear water is sweet
11. 11.🫗 Which of these is done by winnowing? (a) mud from water (b) husk from rice grain (c) small stones from dal (d) tea leaves from tea
12. 12.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
13. 13.🔮 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) it turns to sugar (d) no, salt passes through
14. 14.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
15. 15.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a clean glass (c) a balloon (d) a magnet
17. 17.⚖️ 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
18. 18.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
19. 19.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
20. 20.🫗 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
21. 21.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
23. 23.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
25. 25.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) salt from sea water (c) bad grains from rice (d) mud from water
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) sand and pebbles (d) a funnel
30. 30.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) sieving (d) evaporating
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) yeast (d) cotton or cloth
33. 33.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) cotton or cloth (d) a clean glass
35. 35.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
37. 37.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) mud from water (c) bad grains from rice (d) salt from sea water
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same muddy water (c) the same glass (d) the filter material
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) sand and pebbles (d) yeast
40. 40.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True

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