Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 107 · 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 handpicking? (a) small stones from dal (b) mud from water (c) tea leaves from tea (d) gravel from fine sand
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) the salt (d) nothing
3. 3.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
4. 4.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
5. 5.⚖️ 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
6. 6.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
7. 7.True or false: husk from rice grain is done by winnowing. (a) False (b) True
8. 8.True or false: small stones from dal is done by evaporating. (a) True (b) False
9. 9.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
10. 10.🔮 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
11. 11.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) yes, if it is clear (d) no, germs may stay
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the same funnel (c) the amount poured (d) how clear the water is
13. 13.🫗 How do we separate husk from rice grain? (a) winnowing (b) handpicking (c) evaporating (d) sieving
14. 14.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) sieving (d) winnowing
15. 15.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) muddy water (d) turmeric powder
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) a balloon
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) a magnet (d) cotton or cloth
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) turmeric powder (d) muddy water
19. 19.True or false: husk from rice grain is done by filtering. (a) True (b) False
20. 20.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
21. 21.True or false: bad grains from rice is done by handpicking. (a) False (b) True
22. 22.⚖️ 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 funnel (b) the filter material (c) the amount poured (d) the same muddy water
23. 23.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
24. 24.🔮 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) yes, all of it (d) it turns to sugar
25. 25.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
26. 26.⚖️ 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
27. 27.⚖️ 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 amount poured
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a funnel (d) sand and pebbles
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) muddy water (d) a clean glass
30. 30.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
31. 31.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) salt from sea water (c) mud from water (d) sugar from sugar water
32. 32.True or false: mud from water is done by winnowing. (a) True (b) False
33. 33.🫗 Which of these is done by winnowing? (a) small stones from dal (b) mud from water (c) chaff from wheat grain (d) tea leaves from tea
34. 34.🛟 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
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) yeast (c) a balloon (d) a magnet
36. 36.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
37. 37.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a funnel (c) yeast (d) a balloon
39. 39.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
40. 40.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False

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