Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 6 · 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.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) a funnel (d) a clean glass
2. 2.🫗 Which of these is done by handpicking? (a) mud from water (b) chaff from wheat grain (c) bad grains from rice (d) gravel from fine sand
3. 3.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) husk from rice grain (c) mud from water (d) sugar from sugar water
4. 4.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
5. 5.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) handpicking (d) sieving
6. 6.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) a clean glass (d) muddy water
8. 8.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
9. 9.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
10. 10.⚖️ 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 muddy water (c) the filter material
11. 11.⚖️ 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 measure it (b) we keep it the same (c) we change it
12. 12.True or false: husk from rice grain is done by winnowing. (a) False (b) True
13. 13.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves pass through (d) leaves stay behind
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
15. 15.True or false: gravel from fine sand is done by sieving. (a) False (b) True
16. 16.True or false: bad grains from rice is done by sieving. (a) False (b) True
17. 17.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
18. 18.⚖️ 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
19. 19.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) mud from water (c) husk from rice grain (d) bran from wheat flour
20. 20.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
21. 21.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
22. 22.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
23. 23.⚖️ 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
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same funnel (b) the same muddy water (c) how clear the water is (d) the filter material
25. 25.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
26. 26.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
27. 27.⚖️ 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
28. 28.⚖️ 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 glass
29. 29.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) a magnet (d) a battery cell
30. 30.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
31. 31.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) sand and pebbles (d) a funnel
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) muddy water (d) yeast
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
36. 36.True or false: tea leaves from tea is done by evaporating. (a) False (b) True
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) a clean glass (d) muddy water
38. 38.True or false: a funnel is not 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? True or false: the filter material is kept the same. (a) False (b) True
40. 40.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed

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