Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 3 · 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 done by evaporating? (a) tea leaves from tea (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) a balloon
3. 3.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
4. 4.🫗 How do we separate small stones from dal? (a) filtering (b) evaporating (c) sieving (d) handpicking
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) a clean glass (d) yeast
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) sand and pebbles (c) turmeric powder (d) a balloon
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same glass (c) how clear the water is (d) the same muddy water
10. 10.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) evaporating (d) filtering
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) yeast (d) a mirror
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 amount poured (b) the same muddy water (c) the filter material (d) how clear the water is
13. 13.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
14. 14.True or false: sugar from sugar water is done by sieving. (a) True (b) False
15. 15.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) muddy water (d) cotton or cloth
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a funnel (d) a balloon
18. 18.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) both stay behind (d) leaves pass through
20. 20.True or false: husk from rice grain is done by winnowing. (a) True (b) False
21. 21.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
22. 22.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
23. 23.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) handpicking (d) sieving
24. 24.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
25. 25.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
26. 26.⚖️ 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
27. 27.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) yeast (d) a battery cell
29. 29.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
30. 30.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
31. 31.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) no, salt passes through (d) yes, all of it
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) muddy water (d) a clean glass
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) a funnel (d) muddy water
34. 34.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
35. 35.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
36. 36.⚖️ 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 amount poured (c) the filter material
37. 37.⚖️ 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
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) sand and pebbles (d) a funnel
39. 39.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the water evaporates (d) the mud dissolves
40. 40.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) sugar from sugar water (c) gravel from fine sand (d) tea leaves from tea

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