Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 415 · 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 kept the same? (a) the filter material (b) how clear the water is (c) the amount poured
2. 2.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
3. 3.🛟 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
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) turmeric powder (c) a clean glass (d) a funnel
5. 5.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) sand and pebbles (d) a mirror
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a funnel (d) turmeric powder
8. 8.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
9. 9.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
10. 10.🫗 How do we separate salt from sea water? (a) sieving (b) evaporating (c) filtering (d) handpicking
11. 11.⚖️ 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 change it (c) we measure it
12. 12.⚖️ 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 glass (b) how clear the water is (c) the filter material (d) the same muddy water
13. 13.True or false: tea leaves from tea is done by filtering. (a) False (b) True
14. 14.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
15. 15.🫗 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
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
18. 18.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a balloon (c) a funnel (d) cotton or cloth
21. 21.⚖️ 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) True (b) False
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
23. 23.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
24. 24.⚖️ 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
25. 25.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
26. 26.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) evaporating (d) winnowing
27. 27.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
28. 28.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
29. 29.⚖️ 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 same glass (c) the amount poured (d) how clear the water is
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) muddy water (d) a mirror
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) muddy water (d) a mirror
32. 32.🔮 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
33. 33.🫗 Which of these is done by evaporating? (a) mud from water (b) tea leaves from tea (c) small stones from dal (d) sugar from sugar water
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) muddy water (d) cotton or cloth
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: gravel from fine sand is done by evaporating. (a) False (b) True
37. 37.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a magnet (d) cotton or cloth
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) cotton or cloth (d) a clean glass
40. 40.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) winnowing (d) evaporating

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