Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 310 · 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.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) leaves pass through (d) tea stays behind
2. 2.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
4. 4.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) a battery cell (d) yeast
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) a clean glass (d) yeast
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
7. 7.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) winnowing (d) handpicking
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a mirror (c) cotton or cloth (d) sand and pebbles
9. 9.⚖️ 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
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 measure it (b) we change it (c) we keep it the same
11. 11.🫗 Which of these is done by winnowing? (a) mud from water (b) salt from sea water (c) husk from rice grain (d) gravel from fine sand
12. 12.⚖️ 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) True (b) False
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same muddy water (c) how clear the water is (d) the amount poured
14. 14.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
15. 15.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
16. 16.True or false: gravel from fine sand is done by winnowing. (a) True (b) False
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) sand and pebbles (d) muddy water
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) turmeric powder (d) cotton or cloth
20. 20.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) a magnet
22. 22.⚖️ 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
23. 23.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
24. 24.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) salt from sea water (c) chaff from wheat grain (d) small stones from dal
25. 25.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
26. 26.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
27. 27.🫗 How do we separate gravel from fine sand? (a) evaporating (b) winnowing (c) sieving (d) handpicking
28. 28.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
29. 29.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
30. 30.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
31. 31.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
32. 32.⚖️ 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) True (b) False
33. 33.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
34. 34.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) a balloon (d) a funnel
35. 35.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
36. 36.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) filtering (d) winnowing
37. 37.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
38. 38.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a clean glass (d) yeast

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