Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 493 · 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.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) muddy water (d) turmeric powder
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) muddy water (d) a clean glass
3. 3.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a battery cell
5. 5.True or false: tea leaves from tea is done by filtering. (a) False (b) True
6. 6.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
7. 7.⚖️ 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
8. 8.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
11. 11.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it sinks to the bottom (d) it floats on top
12. 12.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
13. 13.⚖️ 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
14. 14.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a mirror (d) a funnel
16. 16.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
17. 17.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
18. 18.True or false: salt from sea water is done by handpicking. (a) True (b) False
19. 19.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) muddy water (d) turmeric powder
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
22. 22.🫗 How do we separate tea leaves from tea? (a) filtering (b) handpicking (c) winnowing (d) evaporating
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) sand and pebbles (d) turmeric powder
24. 24.🫗 How do we separate husk from rice grain? (a) sieving (b) evaporating (c) winnowing (d) handpicking
25. 25.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) bad grains from rice (c) husk from rice grain (d) tea leaves from tea
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
27. 27.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
28. 28.⚖️ 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
29. 29.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
30. 30.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
31. 31.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) yes, always (d) no, germs may stay
32. 32.🫗 How do we separate salt from sea water? (a) sieving (b) handpicking (c) winnowing (d) evaporating
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
35. 35.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the filter adds soap (d) the water evaporates
36. 36.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) cotton or cloth (d) a clean glass
38. 38.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
39. 39.🫗 Which of these is done by handpicking? (a) small stones from dal (b) salt from sea water (c) tea leaves from tea (d) mud from water
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) muddy water (d) a funnel

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