Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 72 · 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: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
2. 2.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
3. 3.⚖️ 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 measure it (b) we change it (c) we keep it the same
4. 4.🫗 Which of these is done by handpicking? (a) mud from water (b) husk from rice grain (c) sugar from sugar water (d) bad grains from rice
5. 5.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
6. 6.True or false: salt from sea water is done by evaporating. (a) True (b) False
7. 7.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
8. 8.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) sugar from sugar water (c) gravel from fine sand (d) small stones from dal
9. 9.⚖️ 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
10. 10.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) sieving (d) evaporating
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a clean glass (d) cotton or cloth
12. 12.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
13. 13.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) salt from sea water (c) chaff from wheat grain (d) bad grains from rice
14. 14.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is salty (d) clear water is hot
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) yeast
16. 16.True or false: bad grains from rice is done by handpicking. (a) False (b) True
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.🔮 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) yes, all of it (d) no, salt passes through
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) muddy water (d) a battery cell
20. 20.⚖️ 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) True (b) False
21. 21.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
22. 22.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
23. 23.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
24. 24.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
25. 25.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
26. 26.True or false: salt from sea water is done by handpicking. (a) True (b) False
27. 27.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
28. 28.🫗 Which of these is done by filtering? (a) salt from sea water (b) chaff from wheat grain (c) mud from water (d) bad grains from rice
29. 29.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
30. 30.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) small stones from dal (c) tea leaves from tea (d) husk from rice grain
31. 31.True or false: yeast is needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
33. 33.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
34. 34.🫗 How do we separate sugar from sugar water? (a) winnowing (b) sieving (c) handpicking (d) evaporating
35. 35.⚖️ 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) True (b) False
36. 36.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
37. 37.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
38. 38.⚖️ 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 muddy water (b) the same funnel (c) the amount poured (d) the filter material
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we measure it (c) we change it

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