Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 742 · 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? Which of these is what we measure? (a) the amount poured (b) how clear the water is (c) the same glass (d) the filter material
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a funnel (d) a battery cell
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
4. 4.True or false: mud from water is done by winnowing. (a) False (b) True
5. 5.True or false: salt from sea water is done by evaporating. (a) True (b) False
6. 6.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
7. 7.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a clean glass (d) a mirror
9. 9.⚖️ 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
10. 10.True or false: mud from water is done by filtering. (a) False (b) True
11. 11.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) tea leaves from tea (c) salt from sea water (d) small stones from dal
12. 12.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
13. 13.True or false: tea leaves from tea is done by filtering. (a) True (b) False
14. 14.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
15. 15.⚖️ 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
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) how clear the water is (c) the same muddy water (d) the filter material
18. 18.🫗 How do we separate sugar from sugar water? (a) evaporating (b) filtering (c) sieving (d) handpicking
19. 19.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) winnowing (d) sieving
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a magnet (d) muddy water
21. 21.True or false: bad grains from rice is done by handpicking. (a) False (b) True
22. 22.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
23. 23.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
24. 24.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
25. 25.🔮 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
26. 26.⚖️ 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 same funnel
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) sand and pebbles (d) a mirror
28. 28.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) cotton or cloth (d) muddy water
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) turmeric powder
32. 32.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
34. 34.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
35. 35.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) winnowing (d) filtering
36. 36.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) filtering (d) winnowing
37. 37.⚖️ 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
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a mirror (c) turmeric powder (d) a balloon
39. 39.True or false: husk from rice grain is done by filtering. (a) False (b) True
40. 40.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud

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