Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 207 · 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) muddy water (b) a funnel (c) a magnet (d) a clean glass
2. 2.⚖️ 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
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a balloon (d) muddy water
4. 4.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) tea leaves from tea (c) small stones from dal (d) bran from wheat flour
5. 5.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
6. 6.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) a balloon (d) a magnet
7. 7.🫗 How do we separate bran from wheat flour? (a) filtering (b) winnowing (c) handpicking (d) sieving
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a battery cell (c) a funnel (d) a clean glass
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a magnet (d) a funnel
10. 10.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
11. 11.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
12. 12.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
13. 13.⚖️ 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 muddy water (b) the same glass (c) the amount poured (d) the filter material
14. 14.⚖️ 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) the same glass (c) how clear the water is
15. 15.True or false: small stones from dal is done by handpicking. (a) False (b) True
16. 16.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) sugar from sugar water (c) bad grains from rice (d) mud from water
17. 17.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) evaporating (c) handpicking (d) sieving
18. 18.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
19. 19.⚖️ 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 keep it the same (c) we measure it
20. 20.⚖️ 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
21. 21.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) sand and pebbles (c) yeast (d) turmeric powder
23. 23.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
24. 24.True or false: bad grains from rice is done by sieving. (a) False (b) True
25. 25.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a funnel (c) a clean glass (d) muddy water
27. 27.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
28. 28.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
29. 29.🧺 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 funnel (d) muddy water
30. 30.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
31. 31.🔮 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
32. 32.🛟 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
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
34. 34.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the mud dissolves (d) the water evaporates
35. 35.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
36. 36.🫗 How do we separate gravel from fine sand? (a) sieving (b) winnowing (c) filtering (d) evaporating
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) turmeric powder (d) a funnel
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a mirror (d) a clean glass
40. 40.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True

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