Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 907 · 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.True or false: bran from wheat flour is done by sieving. (a) False (b) True
2. 2.🫗 How do we separate sugar from sugar water? (a) winnowing (b) evaporating (c) sieving (d) filtering
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) cotton or cloth (d) yeast
4. 4.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
5. 5.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the water evaporates (d) the mud dissolves
6. 6.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) evaporating (d) handpicking
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a clean glass (d) cotton or cloth
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🫗 Which of these is done by evaporating? (a) salt from sea water (b) tea leaves from tea (c) gravel from fine sand (d) chaff from wheat grain
10. 10.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) 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 filter material (b) the same glass (c) the amount poured (d) the same funnel
12. 12.True or false: bad grains from rice is done by sieving. (a) True (b) False
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) a magnet (d) a balloon
14. 14.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
15. 15.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
16. 16.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
17. 17.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
18. 18.⚖️ 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
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? True or false: the same funnel is the one thing we change. (a) True (b) False
21. 21.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bran from wheat flour (c) tea leaves from tea (d) bad grains from rice
22. 22.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) handpicking (d) winnowing
23. 23.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
24. 24.🫗 How do we separate gravel from fine sand? (a) filtering (b) winnowing (c) evaporating (d) sieving
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
26. 26.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) mud from water (c) sugar from sugar water (d) tea leaves from tea
27. 27.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
28. 28.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
29. 29.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
30. 30.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a mirror (c) a battery cell (d) a magnet
31. 31.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same glass (c) the amount poured (d) how clear the water is
34. 34.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) turmeric powder
36. 36.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) sand and pebbles (d) a magnet
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a battery cell (d) a clean glass
38. 38.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) yes, all of it (d) it turns to sand
39. 39.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
40. 40.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed

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