Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 143 · 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 same muddy water (b) the filter material (c) the same glass (d) how clear the water is
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) yeast (d) sand and pebbles
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
4. 4.⚖️ 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
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sugar (d) it turns to sand
7. 7.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) filtering (d) handpicking
8. 8.True or false: mud from water is done by filtering. (a) False (b) True
9. 9.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
12. 12.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
13. 13.🫗 Which of these is done by sieving? (a) salt from sea water (b) husk from rice grain (c) tea leaves from tea (d) gravel from fine sand
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a mirror
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) muddy water (d) a mirror
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) cotton or cloth (d) muddy water
17. 17.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) a mirror (d) a balloon
18. 18.True or false: sugar from sugar water is done by sieving. (a) True (b) False
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🫗 How do we separate salt from sea water? (a) handpicking (b) filtering (c) sieving (d) evaporating
21. 21.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a clean glass (d) a magnet
23. 23.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
25. 25.🫗 Which of these is done by filtering? (a) mud from water (b) bad grains from rice (c) salt from sea water (d) gravel from fine sand
26. 26.🫗 How do we separate sugar from sugar water? (a) evaporating (b) filtering (c) sieving (d) winnowing
27. 27.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
28. 28.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same funnel (c) the same muddy water (d) how clear the water is
30. 30.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) sugar from sugar water (c) bran from wheat flour (d) mud from water
31. 31.⚖️ 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
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) muddy water (d) a balloon
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a funnel (c) muddy water (d) a clean glass
34. 34.⚖️ 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
35. 35.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) handpicking (d) winnowing
36. 36.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
37. 37.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
38. 38.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
39. 39.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
40. 40.⚖️ 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) True (b) False

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