Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 657 · 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 winnowing? (a) gravel from fine sand (b) sugar from sugar water (c) tea leaves from tea (d) chaff from wheat grain
2. 2.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a clean glass (c) a funnel (d) muddy water
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
6. 6.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) small stones from dal (c) tea leaves from tea (d) chaff from wheat grain
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) a funnel (d) cotton or cloth
8. 8.True or false: mud from water is done by handpicking. (a) True (b) False
9. 9.🔮 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
10. 10.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it turns to sand (d) it floats on top
11. 11.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) muddy water (d) a clean glass
13. 13.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a magnet (c) yeast (d) turmeric powder
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.⚖️ 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) how clear the water is (c) the same glass
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) a funnel (d) a mirror
18. 18.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) turmeric powder (d) a magnet
19. 19.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
20. 20.⚖️ 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
21. 21.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, if it is cold (d) yes, always
22. 22.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
23. 23.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
24. 24.⚖️ 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 funnel
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.True or false: a battery cell is not needed for the muddy water filter. (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 same funnel”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
29. 29.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) chaff from wheat grain (c) tea leaves from tea (d) gravel from fine sand
30. 30.True or false: small stones from dal is done by handpicking. (a) False (b) True
31. 31.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
33. 33.True or false: small stones from dal is done by sieving. (a) True (b) False
34. 34.⚖️ 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
35. 35.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
36. 36.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
37. 37.🫗 How do we separate chaff from wheat grain? (a) filtering (b) sieving (c) winnowing (d) handpicking
38. 38.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) salt from sea water (c) mud from water (d) husk from rice grain
39. 39.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
40. 40.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) evaporating (d) sieving

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