Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 636 · 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? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) sand and pebbles (d) yeast
5. 5.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
6. 6.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) filtering (d) evaporating
7. 7.🫗 How do we separate small stones from dal? (a) winnowing (b) handpicking (c) filtering (d) evaporating
8. 8.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
9. 9.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) turmeric powder (c) muddy water (d) sand and pebbles
13. 13.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
14. 14.🧺 Do we need cotton or cloth 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 battery cell (d) a funnel
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the amount poured (c) how clear the water is (d) the same funnel
17. 17.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
18. 18.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) mud from water (c) husk from rice grain (d) bran from wheat flour
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
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) False (b) True
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) gravel from fine sand (c) sugar from sugar water (d) salt from sea water
23. 23.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
24. 24.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same muddy water (c) the same glass (d) the filter material
27. 27.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
28. 28.True or false: tea leaves from tea is done by filtering. (a) True (b) False
29. 29.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
30. 30.🔍 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
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) muddy water (d) a mirror
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
33. 33.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
34. 34.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
35. 35.🫗 How do we separate tea leaves from tea? (a) evaporating (b) handpicking (c) winnowing (d) filtering
36. 36.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
37. 37.🫗 Which of these is done by evaporating? (a) mud from water (b) salt from sea water (c) chaff from wheat grain (d) bad grains from rice
38. 38.🫗 How do we separate husk from rice grain? (a) handpicking (b) sieving (c) winnowing (d) evaporating
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
40. 40.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) tea leaves from tea (c) small stones from dal (d) sugar from sugar water

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