Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 942 · 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.True or false: husk from rice grain is done by winnowing. (a) False (b) True
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a funnel (d) turmeric powder
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
4. 4.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the amount poured (d) how clear the water is
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) a mirror (d) turmeric powder
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) how clear the water is (c) the same glass (d) the same muddy water
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.True or false: mud from water is done by handpicking. (a) True (b) False
11. 11.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
12. 12.True or false: chaff from wheat grain is done by handpicking. (a) True (b) False
13. 13.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
14. 14.🧺 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) a magnet
15. 15.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
16. 16.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
17. 17.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
18. 18.True or false: bran from wheat flour is done by sieving. (a) True (b) False
19. 19.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) small stones from dal (c) gravel from fine sand (d) tea leaves from tea
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a mirror (d) cotton or cloth
21. 21.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
22. 22.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) tea leaves from tea (c) bran from wheat flour (d) sugar from sugar water
23. 23.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
24. 24.True or false: salt from sea water is done by evaporating. (a) False (b) True
25. 25.⚖️ 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
26. 26.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) winnowing (d) sieving
27. 27.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a funnel (c) cotton or cloth (d) sand and pebbles
29. 29.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
30. 30.True or false: bad grains from rice is done by sieving. (a) False (b) True
31. 31.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) evaporating (d) handpicking
32. 32.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) muddy water (d) a balloon
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) yeast (d) sand and pebbles
35. 35.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a magnet (c) a battery cell (d) yeast
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
38. 38.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
39. 39.🔮 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
40. 40.True or false: mud from water is done by filtering. (a) True (b) False

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