Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 760 · 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.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) no, salt passes through (d) it turns to sugar
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) muddy water (d) cotton or cloth
3. 3.🫗 How do we separate husk from rice grain? (a) sieving (b) filtering (c) handpicking (d) winnowing
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) a clean glass (d) cotton or cloth
5. 5.True or false: tea leaves from tea is done by sieving. (a) False (b) True
6. 6.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
7. 7.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) winnowing (d) handpicking
8. 8.🛟 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
9. 9.True or false: salt from sea water is done by handpicking. (a) False (b) True
10. 10.🧺 Do we need a magnet 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? Which of these is the one thing we change? (a) the same glass (b) the amount poured (c) how clear the water is (d) the filter material
12. 12.True or false: gravel from fine sand is done by sieving. (a) True (b) False
13. 13.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) cotton or cloth (d) a magnet
15. 15.⚖️ 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
16. 16.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) salt from sea water (c) husk from rice grain (d) gravel from fine sand
17. 17.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
18. 18.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
19. 19.True or false: gravel from fine sand is done by winnowing. (a) False (b) True
20. 20.🫗 How do we separate salt from sea water? (a) winnowing (b) evaporating (c) handpicking (d) filtering
21. 21.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) a clean glass (d) muddy water
24. 24.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
25. 25.⚖️ 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
26. 26.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
27. 27.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) cotton or cloth (c) muddy water (d) a funnel
29. 29.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
30. 30.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) mud from water (c) bran from wheat flour (d) bad grains from rice
31. 31.🫗 Which of these is done by filtering? (a) mud from water (b) husk from rice grain (c) gravel from fine sand (d) bran from wheat flour
32. 32.🫗 Which of these is done by sieving? (a) salt from sea water (b) husk from rice grain (c) mud from water (d) gravel from fine sand
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
34. 34.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
35. 35.True or false: bad grains from rice is done by winnowing. (a) True (b) False
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a clean glass (d) a battery cell
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) a funnel (d) a clean glass
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) yeast (d) a funnel

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