Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 993 · 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.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
2. 2.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) sieving (d) winnowing
3. 3.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) chaff from wheat grain (c) bad grains from rice (d) husk from rice grain
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) muddy water (d) a battery cell
5. 5.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
6. 6.🫗 How do we separate bran from wheat flour? (a) winnowing (b) sieving (c) filtering (d) evaporating
7. 7.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
8. 8.True or false: tea leaves from tea is done by evaporating. (a) False (b) True
9. 9.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
10. 10.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the amount poured (c) the same glass (d) the same funnel
12. 12.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) a mirror (d) a magnet
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) yeast
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) muddy water (d) cotton or cloth
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
16. 16.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
17. 17.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) winnowing (d) handpicking
18. 18.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
20. 20.⚖️ 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
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
22. 22.True or false: small stones from dal is done by handpicking. (a) False (b) True
23. 23.True or false: bad grains from rice is done by filtering. (a) True (b) False
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
26. 26.🫗 How do we separate salt from sea water? (a) filtering (b) handpicking (c) evaporating (d) sieving
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.True or false: salt from sea water is done by evaporating. (a) True (b) False
29. 29.🔮 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
30. 30.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
31. 31.🫗 Which of these is done by winnowing? (a) small stones from dal (b) bran from wheat flour (c) husk from rice grain (d) salt from sea water
32. 32.⚖️ 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 change it (b) we measure it (c) we keep it the same
33. 33.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
34. 34.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
35. 35.⚖️ 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) True (b) False
36. 36.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a battery cell (d) a balloon
37. 37.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) small stones from dal (c) bad grains from rice (d) chaff from wheat grain
38. 38.⚖️ 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
39. 39.🫗 Which of these is done by handpicking? (a) mud from water (b) small stones from dal (c) bran from wheat flour (d) salt from sea water
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same

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