Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 749 · 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 chaff from wheat grain? (a) handpicking (b) evaporating (c) sieving (d) winnowing
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a funnel (d) cotton or cloth
3. 3.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
4. 4.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) a balloon (d) muddy water
6. 6.🫗 How do we separate bad grains from rice? (a) handpicking (b) winnowing (c) evaporating (d) sieving
7. 7.🫗 How do we separate salt from sea water? (a) winnowing (b) sieving (c) evaporating (d) handpicking
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) the same funnel (c) the same muddy water (d) the filter material
9. 9.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) tea leaves from tea (c) salt from sea water (d) husk from rice grain
10. 10.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) clearer (d) hot
11. 11.🔮 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
12. 12.True or false: yeast is needed for the muddy water filter. (a) True (b) False
13. 13.🫗 How do we separate sugar from sugar water? (a) winnowing (b) handpicking (c) sieving (d) evaporating
14. 14.True or false: tea leaves from tea is done by filtering. (a) False (b) True
15. 15.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
16. 16.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
17. 17.⚖️ 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 measure it (c) we change it
18. 18.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bad grains from rice (c) husk from rice grain (d) chaff from wheat grain
19. 19.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
20. 20.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a funnel (d) a magnet
21. 21.True or false: sugar from sugar water is done by filtering. (a) False (b) True
22. 22.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
23. 23.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a balloon
25. 25.🫗 Which of these is done by sieving? (a) bad grains from rice (b) mud from water (c) sugar from sugar water (d) bran from wheat flour
26. 26.🫗 How do we separate bran from wheat flour? (a) evaporating (b) sieving (c) winnowing (d) filtering
27. 27.🫗 How do we separate mud from water? (a) sieving (b) filtering (c) evaporating (d) handpicking
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a balloon (d) a clean glass
29. 29.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
30. 30.⚖️ 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 funnel
31. 31.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
32. 32.True or false: salt from sea water is done by filtering. (a) False (b) True
33. 33.True or false: salt from sea water is done by evaporating. (a) True (b) False
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
36. 36.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
37. 37.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
38. 38.True or false: gravel from fine sand is done by filtering. (a) True (b) False
39. 39.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) mud from water (c) chaff from wheat grain (d) small stones from dal
40. 40.⚖️ 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) True (b) False

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