Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 684 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) cotton or cloth (d) muddy water
2. 2.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) sand and pebbles (d) a clean glass
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: small stones from dal is done by handpicking. (a) False (b) True
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
8. 8.🔮 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) yes, all of it (d) it turns to sand
9. 9.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
10. 10.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) sieving (c) evaporating (d) winnowing
11. 11.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
12. 12.🫗 How do we separate bad grains from rice? (a) handpicking (b) evaporating (c) sieving (d) filtering
13. 13.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the filter adds soap (d) the mud dissolves
14. 14.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) tea leaves from tea (c) chaff from wheat grain (d) bad grains from rice
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
16. 16.True or false: mud from water is done by handpicking. (a) False (b) True
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same muddy water (c) the filter material (d) the amount poured
18. 18.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
19. 19.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
20. 20.True or false: small stones from dal is done by sieving. (a) True (b) False
21. 21.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) bran from wheat flour (d) gravel from fine sand
22. 22.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
23. 23.🧺 Do we need a mirror 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) the same glass (b) how clear the water is (c) the filter material
25. 25.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
29. 29.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
30. 30.🫗 How do we separate small stones from dal? (a) sieving (b) filtering (c) evaporating (d) handpicking
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a clean glass (d) a mirror
32. 32.⚖️ 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 same funnel (c) the filter material
33. 33.True or false: tea leaves from tea is done by filtering. (a) False (b) True
34. 34.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) sieving (d) handpicking
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) muddy water (d) a funnel
36. 36.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) handpicking (d) filtering
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
38. 38.🫗 Which of these is done by evaporating? (a) salt from sea water (b) bran from wheat flour (c) chaff from wheat grain (d) husk from rice grain
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) muddy water (d) a battery cell
40. 40.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True

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