Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 709 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) a funnel (d) a clean glass
2. 2.🫗 How do we separate bran from wheat flour? (a) handpicking (b) sieving (c) winnowing (d) filtering
3. 3.⚖️ 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 muddy water (b) how clear the water is (c) the filter material (d) the same glass
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
5. 5.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
6. 6.🫗 Which of these is done by handpicking? (a) salt from sea water (b) small stones from dal (c) tea leaves from tea (d) gravel from fine sand
7. 7.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) sugar from sugar water (c) bran from wheat flour (d) gravel from fine sand
8. 8.True or false: husk from rice grain is done by winnowing. (a) False (b) True
9. 9.🫗 How do we separate sugar from sugar water? (a) sieving (b) filtering (c) handpicking (d) evaporating
10. 10.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
11. 11.🫗 How do we separate salt from sea water? (a) winnowing (b) evaporating (c) handpicking (d) sieving
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a battery cell (d) a funnel
13. 13.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
14. 14.🫗 Which of these is done by filtering? (a) husk from rice grain (b) sugar from sugar water (c) salt from sea water (d) mud from water
15. 15.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
16. 16.⚖️ 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 change it (b) we keep it the same (c) we measure it
17. 17.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a balloon (d) cotton or cloth
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
20. 20.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) gravel from fine sand (c) husk from rice grain (d) salt from sea water
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
22. 22.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the mud dissolves (d) the water evaporates
23. 23.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
24. 24.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
25. 25.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) a funnel (d) a mirror
27. 27.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
28. 28.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) evaporating (c) filtering (d) handpicking
29. 29.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) filtering (d) sieving
30. 30.True or false: a clean glass 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.⚖️ 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 change it (c) we measure it
33. 33.True or false: small stones from dal is done by handpicking. (a) False (b) True
34. 34.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) yeast (d) a balloon
35. 35.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
36. 36.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) a magnet (d) a mirror
37. 37.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) handpicking (d) winnowing
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same funnel (c) the filter material
39. 39.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True

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