Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 957 · 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 filtering. (a) False (b) True
2. 2.True or false: gravel from fine sand is done by filtering. (a) True (b) False
3. 3.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) yeast (d) muddy water
5. 5.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) sand and pebbles (d) a mirror
6. 6.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) yes, all of it (d) no, salt passes through
7. 7.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
8. 8.🫗 Which of these is done by winnowing? (a) mud from water (b) salt from sea water (c) bran from wheat flour (d) husk from rice grain
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) muddy water (d) a clean glass
10. 10.⚖️ 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 change it (c) we measure it
11. 11.⚖️ 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 amount poured (d) the same glass
12. 12.🔮 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
13. 13.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
14. 14.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the water evaporates (d) the mud dissolves
15. 15.⚖️ 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
16. 16.🔍 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 turns to sand (d) it dissolves
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) a magnet
18. 18.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) clearer (d) hot
19. 19.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) winnowing (d) sieving
20. 20.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
21. 21.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) a magnet (d) a battery cell
22. 22.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
23. 23.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
24. 24.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
25. 25.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
26. 26.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
27. 27.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
28. 28.🛟 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
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) False (b) True
30. 30.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) yeast (d) a funnel
32. 32.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) small stones from dal (c) gravel from fine sand (d) salt from sea water
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
36. 36.⚖️ 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
37. 37.⚖️ 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 funnel (c) how clear the water is (d) the filter material
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) turmeric powder (d) sand and pebbles
39. 39.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
40. 40.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) evaporating (d) filtering

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