Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 312 · 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 pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
2. 2.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
3. 3.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
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 filter material (b) the amount poured (c) the same glass (d) the same funnel
5. 5.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) sieving (d) winnowing
6. 6.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) sieving (d) evaporating
7. 7.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
10. 10.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) yes, if it is cold (d) no, germs may stay
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
12. 12.True or false: mud from water is done by filtering. (a) False (b) True
13. 13.⚖️ 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
14. 14.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) evaporating (d) winnowing
15. 15.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a mirror (d) a magnet
16. 16.True or false: gravel from fine sand is done by sieving. (a) False (b) True
17. 17.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
18. 18.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
19. 19.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
20. 20.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) it turns to sand (d) no, salt passes through
21. 21.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
22. 22.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) a funnel (d) turmeric powder
23. 23.⚖️ 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
24. 24.🫗 How do we separate husk from rice grain? (a) evaporating (b) handpicking (c) filtering (d) winnowing
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) muddy water (c) cotton or cloth (d) a clean glass
26. 26.⚖️ 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
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.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
30. 30.True or false: bran from wheat flour is done by sieving. (a) True (b) False
31. 31.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) winnowing (d) filtering
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) cotton or cloth (d) a mirror
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) muddy water (d) a battery cell
36. 36.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
37. 37.⚖️ 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 change it (c) we keep it the same
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) cotton or cloth (d) a clean glass
39. 39.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) salt from sea water (c) tea leaves from tea (d) small stones from dal
40. 40.True or false: small stones from dal is done by handpicking. (a) False (b) True

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