Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 214 · 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.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
2. 2.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
3. 3.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
4. 4.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
5. 5.⚖️ 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 amount poured
6. 6.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) sand and pebbles (d) cotton or cloth
8. 8.⚖️ 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
9. 9.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) bad grains from rice (c) salt from sea water (d) chaff from wheat grain
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
11. 11.⚖️ 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
12. 12.🫗 How do we separate salt from sea water? (a) handpicking (b) evaporating (c) sieving (d) winnowing
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the filter material (c) how clear the water is (d) the amount poured
15. 15.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) small stones from dal (c) bran from wheat flour (d) husk from rice grain
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
17. 17.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) sieving (d) filtering
18. 18.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) mud from water (c) salt from sea water (d) bad grains from rice
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a clean glass (c) cotton or cloth (d) sand and pebbles
20. 20.⚖️ 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
21. 21.True or false: bad grains from rice is done by sieving. (a) False (b) True
22. 22.🫗 How do we separate bad grains from rice? (a) handpicking (b) winnowing (c) filtering (d) sieving
23. 23.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
24. 24.🫗 How do we separate mud from water? (a) winnowing (b) sieving (c) filtering (d) handpicking
25. 25.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
26. 26.True or false: gravel from fine sand is done by filtering. (a) False (b) True
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) a clean glass (d) sand and pebbles
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
30. 30.⚖️ 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 measure it (c) we change it
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) sand and pebbles (c) a magnet (d) a balloon
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) a funnel (d) a clean glass
33. 33.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
34. 34.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) handpicking (d) sieving
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a balloon
36. 36.🫗 How do we separate small stones from dal? (a) winnowing (b) filtering (c) evaporating (d) handpicking
37. 37.⚖️ 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 change it (c) we keep it the same
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a battery cell (d) a funnel
39. 39.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) tea leaves from tea (c) salt from sea water (d) sugar from sugar water
40. 40.🫗 How do we separate sugar from sugar water? (a) sieving (b) evaporating (c) handpicking (d) filtering

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