Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 527 · 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? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the same glass (c) how clear the water is (d) the same muddy water
4. 4.True or false: bad grains from rice is done by evaporating. (a) True (b) False
5. 5.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
6. 6.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
7. 7.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
8. 8.⚖️ 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) how clear the water is (c) the filter material (d) the same funnel
9. 9.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
10. 10.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
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.🛟 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
13. 13.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a battery cell (c) turmeric powder (d) a magnet
14. 14.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) filtering (d) winnowing
15. 15.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) sieving (d) handpicking
16. 16.⚖️ 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) False (b) True
17. 17.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
18. 18.True or false: a funnel is not needed for the muddy water filter. (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 keep it the same (b) we measure it (c) we change it
20. 20.⚖️ 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) False (b) True
21. 21.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
22. 22.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
23. 23.⚖️ 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
24. 24.🫗 How do we separate small stones from dal? (a) handpicking (b) filtering (c) sieving (d) evaporating
25. 25.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) evaporating (c) filtering (d) handpicking
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) sand and pebbles (d) a balloon
27. 27.🔮 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 sand (d) it turns to sugar
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) a magnet (d) a funnel
29. 29.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) a funnel (d) cotton or cloth
32. 32.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
33. 33.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
34. 34.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) chaff from wheat grain (c) tea leaves from tea (d) gravel from fine sand
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a balloon (d) a clean glass
36. 36.True or false: small stones from dal is done by filtering. (a) False (b) True
37. 37.🧺 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 battery cell (d) a clean glass
38. 38.🫗 Which of these is done by sieving? (a) salt from sea water (b) chaff from wheat grain (c) tea leaves from tea (d) bran from wheat flour
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) sand and pebbles (d) turmeric powder
40. 40.True or false: husk from rice grain is done by filtering. (a) True (b) False

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