Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 59 · 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.🫗 How do we separate gravel from fine sand? (a) filtering (b) evaporating (c) handpicking (d) sieving
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) cotton or cloth (d) a battery cell
3. 3.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) a magnet (d) yeast
4. 4.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
5. 5.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) chaff from wheat grain (c) mud from water (d) salt from sea water
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 keep it the same (b) we change it (c) we measure it
7. 7.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) sieving (d) handpicking
8. 8.⚖️ 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
9. 9.🫗 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
10. 10.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) evaporating (d) handpicking
11. 11.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
12. 12.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a magnet (d) muddy water
14. 14.⚖️ 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
15. 15.True or false: gravel from fine sand is done by sieving. (a) True (b) False
16. 16.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
17. 17.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
18. 18.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a clean glass (c) a balloon (d) turmeric powder
20. 20.🔮 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
21. 21.🫗 Which of these is done by handpicking? (a) small stones from dal (b) salt from sea water (c) gravel from fine sand (d) bran from wheat flour
22. 22.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
23. 23.🫗 Which of these is done by filtering? (a) mud from water (b) gravel from fine sand (c) sugar from sugar water (d) bad grains from rice
24. 24.True or false: chaff from wheat grain is done by sieving. (a) False (b) True
25. 25.True or false: husk from rice grain is done by winnowing. (a) False (b) True
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.🫗 How do we separate sugar from sugar water? (a) winnowing (b) handpicking (c) evaporating (d) filtering
30. 30.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
32. 32.🫗 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
33. 33.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) turmeric powder (d) a clean glass
35. 35.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) a funnel (d) sand and pebbles
38. 38.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
39. 39.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
40. 40.True or false: small stones from dal is done by sieving. (a) True (b) False

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