Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 263 · 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 sieving? (a) mud from water (b) bad grains from rice (c) husk from rice grain (d) gravel from fine sand
2. 2.🔮 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
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) muddy water (d) a funnel
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same funnel (c) the same muddy water (d) the same glass
6. 6.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) sieving (d) winnowing
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) cotton or cloth (d) a battery cell
12. 12.⚖️ 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 glass
13. 13.True or false: husk from rice grain is done by sieving. (a) False (b) True
14. 14.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) yeast (d) turmeric powder
15. 15.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
16. 16.True or false: gravel from fine sand is done by sieving. (a) False (b) True
17. 17.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
18. 18.🧺 Do we need a battery cell 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 pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
20. 20.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) evaporating (d) filtering
21. 21.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) turmeric powder (d) a funnel
23. 23.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
24. 24.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) nothing (d) the mud
25. 25.⚖️ 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
26. 26.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the mud dissolves (d) the filter adds soap
27. 27.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) chaff from wheat grain (c) gravel from fine sand (d) small stones from dal
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) muddy water (c) cotton or cloth (d) a funnel
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.🫗 How do we separate sugar from sugar water? (a) filtering (b) sieving (c) winnowing (d) evaporating
32. 32.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) husk from rice grain (c) gravel from fine sand (d) sugar from sugar water
33. 33.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
34. 34.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
35. 35.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
36. 36.🫗 How do we separate tea leaves from tea? (a) filtering (b) evaporating (c) sieving (d) handpicking
37. 37.True or false: gravel from fine sand is done by evaporating. (a) False (b) True
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same muddy water (c) the amount poured (d) the filter material
39. 39.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
40. 40.True or false: tea leaves from tea is done by winnowing. (a) False (b) True

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