Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 245 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the filter material (c) the same muddy water (d) the same funnel
2. 2.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) sand and pebbles (d) turmeric powder
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a funnel (c) muddy water (d) a clean glass
6. 6.True or false: bran from wheat flour is done by filtering. (a) False (b) True
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
8. 8.🫗 How do we separate husk from rice grain? (a) sieving (b) handpicking (c) winnowing (d) filtering
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
10. 10.🫗 How do we separate mud from water? (a) sieving (b) winnowing (c) filtering (d) evaporating
11. 11.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) muddy water (d) a battery cell
13. 13.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
14. 14.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) gravel from fine sand (c) bad grains from rice (d) mud from water
15. 15.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
16. 16.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) salt from sea water (c) tea leaves from tea (d) small stones from dal
17. 17.🫗 How do we separate bran from wheat flour? (a) sieving (b) winnowing (c) evaporating (d) handpicking
18. 18.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the mud dissolves (d) the filter adds soap
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a battery cell (d) muddy water
20. 20.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) yeast (d) a magnet
21. 21.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
22. 22.⚖️ 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
23. 23.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a balloon (d) cotton or cloth
25. 25.⚖️ 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
26. 26.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
27. 27.🛟 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
28. 28.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) mud from water (c) bad grains from rice (d) sugar from sugar water
29. 29.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
30. 30.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) no, salt passes through (d) yes, all of it
31. 31.True or false: bran from wheat flour is done by sieving. (a) True (b) False
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a clean glass (d) a mirror
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a magnet
34. 34.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a clean glass (d) yeast
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a magnet (d) muddy water
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) sand and pebbles (d) a balloon
38. 38.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
39. 39.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
40. 40.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot

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