Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 274 · 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? True or false: the same glass is kept the same. (a) False (b) True
2. 2.🫗 How do we separate bran from wheat flour? (a) sieving (b) winnowing (c) filtering (d) handpicking
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) muddy water (d) a magnet
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) yeast (d) sand and pebbles
5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
6. 6.True or false: sugar from sugar water is done by sieving. (a) True (b) False
7. 7.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
8. 8.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) yeast (d) a mirror
12. 12.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a mirror (d) muddy water
14. 14.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, always (d) yes, if it is cold
15. 15.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the same funnel (d) the same glass
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same muddy water
18. 18.⚖️ 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
19. 19.🫗 How do we separate salt from sea water? (a) sieving (b) handpicking (c) filtering (d) evaporating
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) turmeric powder (d) sand and pebbles
21. 21.True or false: husk from rice grain is done by winnowing. (a) False (b) True
22. 22.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
25. 25.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
26. 26.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) filtering (d) winnowing
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) a funnel (d) muddy water
28. 28.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
29. 29.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
30. 30.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
31. 31.⚖️ 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 amount poured
32. 32.True or false: mud from water is done by filtering. (a) True (b) False
33. 33.True or false: bran from wheat flour is done by filtering. (a) True (b) False
34. 34.⚖️ 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 same glass (c) the filter material
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
37. 37.True or false: mud from water is done by evaporating. (a) False (b) True
38. 38.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) winnowing (d) evaporating
39. 39.True or false: small stones from dal is done by handpicking. (a) False (b) True
40. 40.🫗 Which of these is done by evaporating? (a) salt from sea water (b) chaff from wheat grain (c) mud from water (d) bad grains from rice

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