Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 15 · 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 not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a mirror (d) cotton or cloth
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) muddy water (d) a balloon
3. 3.⚖️ 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 amount poured (c) the filter material
4. 4.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
5. 5.🫗 Which of these is done by evaporating? (a) small stones from dal (b) husk from rice grain (c) salt from sea water (d) gravel from fine sand
6. 6.🛟 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
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) cotton or cloth (c) a clean glass (d) muddy water
8. 8.🫗 Which of these is done by sieving? (a) salt from sea water (b) bad grains from rice (c) gravel from fine sand (d) tea leaves from tea
9. 9.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
10. 10.🫗 Which of these is done by sieving? (a) husk from rice grain (b) bran from wheat flour (c) sugar from sugar water (d) tea leaves from tea
11. 11.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
12. 12.⚖️ 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
13. 13.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
14. 14.True or false: bad grains from rice is done by evaporating. (a) True (b) False
15. 15.True or false: small stones from dal is done by filtering. (a) True (b) False
16. 16.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
17. 17.True or false: bran from wheat flour is done by sieving. (a) True (b) False
18. 18.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bran from wheat flour (c) chaff from wheat grain (d) mud from water
19. 19.⚖️ 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) how clear the water is (c) the same glass (d) the amount poured
20. 20.True or false: small stones from dal is done by evaporating. (a) False (b) True
21. 21.True or false: sugar from sugar water is done by filtering. (a) True (b) False
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
23. 23.True or false: bad grains from rice is done by handpicking. (a) False (b) True
24. 24.True or false: bran from wheat flour is done by filtering. (a) True (b) False
25. 25.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) salt from sea water (c) bad grains from rice (d) tea leaves from tea
26. 26.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) it turns to sugar (d) yes, all of it
27. 27.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) sugar from sugar water (c) gravel from fine sand (d) chaff from wheat grain
28. 28.True or false: husk from rice grain is done by sieving. (a) True (b) False
29. 29.🫗 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
30. 30.True or false: gravel from fine sand is done by winnowing. (a) True (b) False
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a funnel (c) sand and pebbles (d) a clean glass
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) a clean glass (d) muddy water
34. 34.⚖️ 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
35. 35.🫗 How do we separate bran from wheat flour? (a) handpicking (b) winnowing (c) sieving (d) evaporating
36. 36.🧺 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
37. 37.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) clearer (d) salty
38. 38.True or false: small stones from dal is done by handpicking. (a) False (b) True
39. 39.⚖️ 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
40. 40.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) sieving (d) handpicking

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