Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 906 · 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 the one thing we change? (a) how clear the water is (b) the filter material (c) the same funnel (d) the same glass
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) sand and pebbles (d) a funnel
3. 3.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
4. 4.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
6. 6.⚖️ 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
7. 7.🫗 Which of these is done by sieving? (a) small stones from dal (b) tea leaves from tea (c) bran from wheat flour (d) salt from sea water
8. 8.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) sieving (d) filtering
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) turmeric powder (d) sand and pebbles
10. 10.🛟 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
11. 11.🫗 How do we separate tea leaves from tea? (a) filtering (b) handpicking (c) sieving (d) evaporating
12. 12.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
13. 13.🫗 How do we separate bran from wheat flour? (a) filtering (b) handpicking (c) evaporating (d) sieving
14. 14.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
15. 15.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
16. 16.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) yes, all of it (d) it turns to sand
17. 17.⚖️ 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
18. 18.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
19. 19.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
21. 21.🫗 Which of these is done by evaporating? (a) small stones from dal (b) husk from rice grain (c) salt from sea water (d) gravel from fine sand
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a clean glass (c) a magnet (d) turmeric powder
23. 23.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
24. 24.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
25. 25.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
26. 26.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) filtering (d) sieving
27. 27.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) muddy water (d) a magnet
29. 29.⚖️ 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
30. 30.🫗 How do we separate bad grains from rice? (a) winnowing (b) evaporating (c) handpicking (d) sieving
31. 31.🫗 Which of these is done by winnowing? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) bran from wheat flour
32. 32.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) gravel from fine sand (c) chaff from wheat grain (d) mud from water
33. 33.⚖️ 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 change it (c) we keep it the same
34. 34.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) a magnet (d) a balloon
35. 35.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
36. 36.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
37. 37.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
38. 38.True or false: salt from sea water is done by evaporating. (a) True (b) False
39. 39.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) a clean glass (d) cotton or cloth

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