Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 251 · 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 kept the same? (a) how clear the water is (b) the filter material (c) the same funnel
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) yeast (d) muddy water
3. 3.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a funnel (d) a mirror
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) sand and pebbles (d) a funnel
5. 5.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
6. 6.⚖️ 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
7. 7.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
8. 8.🫗 Which of these is done by sieving? (a) bad grains from rice (b) sugar from sugar water (c) gravel from fine sand (d) mud from water
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
10. 10.🫗 How do we separate sugar from sugar water? (a) filtering (b) handpicking (c) winnowing (d) evaporating
11. 11.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) filtering (d) sieving
15. 15.True or false: tea leaves from tea is done by filtering. (a) True (b) False
16. 16.⚖️ 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
17. 17.True or false: small stones from dal is done by winnowing. (a) True (b) False
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same muddy water (c) how clear the water is (d) the same funnel
19. 19.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, if it is cold (d) yes, always
20. 20.True or false: small stones from dal is done by filtering. (a) True (b) False
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) a funnel (d) cotton or cloth
22. 22.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
23. 23.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) muddy water (d) a funnel
25. 25.⚖️ 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 funnel (b) the filter material (c) the same muddy water (d) the amount poured
26. 26.True or false: husk from rice grain is done by winnowing. (a) True (b) False
27. 27.⚖️ 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
28. 28.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) sugar from sugar water (c) bad grains from rice (d) chaff from wheat grain
29. 29.🫗 Which of these is done by evaporating? (a) salt from sea water (b) bran from wheat flour (c) bad grains from rice (d) chaff from wheat grain
30. 30.🫗 How do we separate mud from water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
31. 31.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a mirror (d) cotton or cloth
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a clean glass (c) a funnel (d) sand and pebbles
34. 34.⚖️ 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
35. 35.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
36. 36.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
37. 37.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) it turns to sugar (d) yes, all of it
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.⚖️ 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
40. 40.🫗 Which of these is done by handpicking? (a) mud from water (b) bad grains from rice (c) sugar from sugar water (d) tea leaves from tea

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