Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 151 · 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) the amount poured (b) the same funnel (c) how clear the water is (d) the filter material
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) sand and pebbles (d) a funnel
3. 3.🫗 How do we separate husk from rice grain? (a) winnowing (b) handpicking (c) filtering (d) sieving
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
5. 5.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
6. 6.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
7. 7.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) handpicking (d) filtering
8. 8.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
9. 9.True or false: bran from wheat flour is done by sieving. (a) True (b) False
10. 10.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) gravel from fine sand (c) small stones from dal (d) sugar from sugar water
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) muddy water (d) a clean glass
12. 12.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
13. 13.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
14. 14.🫗 How do we separate gravel from fine sand? (a) winnowing (b) filtering (c) sieving (d) handpicking
15. 15.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) sieving (d) handpicking
16. 16.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) bad grains from rice (c) tea leaves from tea (d) salt from sea water
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
19. 19.True or false: bad grains from rice is done by handpicking. (a) True (b) False
20. 20.⚖️ 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 measure it (b) we keep it the same (c) we change it
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same funnel (c) the same muddy water (d) how clear the water is
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a balloon (d) a funnel
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a clean glass (c) turmeric powder (d) a battery cell
24. 24.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates
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 turmeric powder for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
28. 28.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
29. 29.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
30. 30.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) chaff from wheat grain (c) sugar from sugar water (d) husk from rice grain
31. 31.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
32. 32.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
33. 33.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) tea leaves from tea (c) sugar from sugar water (d) small stones from dal
34. 34.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
35. 35.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) sugar from sugar water (c) bad grains from rice (d) husk from rice grain
36. 36.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
37. 37.🫗 How do we separate salt from sea water? (a) evaporating (b) filtering (c) winnowing (d) handpicking
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a funnel (c) sand and pebbles (d) muddy water
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
40. 40.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False

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