Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 243 · 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 same muddy water
2. 2.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
3. 3.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
4. 4.🔮 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
5. 5.🫗 How do we separate bran from wheat flour? (a) evaporating (b) sieving (c) winnowing (d) filtering
6. 6.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) sugar from sugar water (c) small stones from dal (d) husk from rice grain
7. 7.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
8. 8.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
9. 9.True or false: bad grains from rice is done by sieving. (a) True (b) False
10. 10.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
11. 11.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) cotton or cloth (d) a funnel
13. 13.🫗 How do we separate chaff from wheat grain? (a) filtering (b) sieving (c) winnowing (d) evaporating
14. 14.🔍 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
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.True or false: bad grains from rice is done by winnowing. (a) True (b) False
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a mirror (d) a balloon
20. 20.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) no, salt passes through (d) it turns to sugar
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) cotton or cloth (d) a battery cell
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a funnel (d) a magnet
23. 23.🫗 How do we separate sugar from sugar water? (a) winnowing (b) evaporating (c) handpicking (d) sieving
24. 24.🫗 How do we separate mud from water? (a) winnowing (b) sieving (c) evaporating (d) filtering
25. 25.⚖️ 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
26. 26.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
27. 27.⚖️ 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 funnel (c) the same glass (d) the filter material
28. 28.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
29. 29.True or false: tea leaves from tea is done by sieving. (a) True (b) False
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) a battery cell (d) a clean glass
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a balloon (d) a clean glass
32. 32.⚖️ 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 funnel (c) how clear the water is (d) the amount poured
33. 33.True or false: bran from wheat flour is done by sieving. (a) True (b) False
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a balloon (c) a clean glass (d) muddy water
36. 36.⚖️ 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
37. 37.True or false: mud from water is done by sieving. (a) False (b) True
38. 38.🫗 Which of these is done by filtering? (a) small stones from dal (b) chaff from wheat grain (c) tea leaves from tea (d) husk from rice grain
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 keep it the same (c) we change it
40. 40.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed

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