Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 301 · 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? True or false: the same glass is kept the same. (a) False (b) True
2. 2.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a battery cell (d) a funnel
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) a battery cell (d) a magnet
5. 5.⚖️ 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 filter material (c) the same glass (d) how clear the water is
6. 6.⚖️ 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
7. 7.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) bad grains from rice (c) sugar from sugar water (d) tea leaves from tea
8. 8.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
9. 9.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
10. 10.🫗 How do we separate husk from rice grain? (a) sieving (b) evaporating (c) filtering (d) winnowing
11. 11.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) chaff from wheat grain (c) salt from sea water (d) small stones from dal
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) muddy water (d) turmeric powder
13. 13.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) tea leaves from tea (c) chaff from wheat grain (d) bad grains from rice
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
15. 15.True or false: gravel from fine sand is done by sieving. (a) False (b) True
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
17. 17.🫗 How do we separate small stones from dal? (a) winnowing (b) handpicking (c) filtering (d) sieving
18. 18.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the filter adds soap (d) the mud dissolves
19. 19.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
20. 20.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) a balloon (d) a mirror
21. 21.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) chaff from wheat grain (c) bad grains from rice (d) gravel from fine sand
22. 22.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
23. 23.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
24. 24.⚖️ 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
25. 25.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
27. 27.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
28. 28.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) yes, all of it (d) it turns to sugar
29. 29.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
30. 30.🫗 Which of these is done by filtering? (a) husk from rice grain (b) chaff from wheat grain (c) sugar from sugar water (d) tea leaves from tea
31. 31.⚖️ 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 keep it the same (b) we change it (c) we measure it
32. 32.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a balloon (d) a funnel
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
35. 35.⚖️ 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) the amount poured (c) how clear the water is
36. 36.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
37. 37.🫗 How do we separate salt from sea water? (a) winnowing (b) evaporating (c) handpicking (d) filtering
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a magnet (c) a funnel (d) a clean glass
39. 39.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) evaporating (d) winnowing
40. 40.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a mirror (d) yeast

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