Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 257 · 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: gravel from fine sand is done by sieving. (a) True (b) False
2. 2.🫗 How do we separate husk from rice grain? (a) winnowing (b) handpicking (c) sieving (d) filtering
3. 3.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
4. 4.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
6. 6.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) yeast (d) a battery cell
7. 7.🫗 How do we separate bad grains from rice? (a) filtering (b) handpicking (c) sieving (d) winnowing
8. 8.🫗 Which of these is done by winnowing? (a) small stones from dal (b) gravel from fine sand (c) husk from rice grain (d) mud from water
9. 9.🫗 How do we separate sugar from sugar water? (a) handpicking (b) sieving (c) filtering (d) evaporating
10. 10.True or false: bran from wheat flour is done by sieving. (a) True (b) False
11. 11.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
13. 13.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
14. 14.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
15. 15.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
17. 17.🫗 Which of these is done by filtering? (a) small stones from dal (b) salt from sea water (c) chaff from wheat grain (d) mud from water
18. 18.🫗 Which of these is done by sieving? (a) salt from sea water (b) gravel from fine sand (c) mud from water (d) husk from rice grain
19. 19.🫗 How do we separate chaff from wheat grain? (a) filtering (b) winnowing (c) sieving (d) evaporating
20. 20.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
21. 21.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) small stones from dal (c) sugar from sugar water (d) husk from rice grain
22. 22.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
23. 23.🧺 Do we need sand and pebbles 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) a mirror (b) cotton or cloth (c) sand and pebbles (d) a funnel
25. 25.True or false: chaff from wheat grain is done by handpicking. (a) True (b) False
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) cotton or cloth (d) a funnel
27. 27.⚖️ 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) True (b) False
28. 28.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) tea leaves from tea (c) salt from sea water (d) mud from water
29. 29.🔮 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
30. 30.True or false: sand and pebbles is not 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 same funnel is what we measure. (a) True (b) False
32. 32.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
33. 33.⚖️ 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 change it (c) we keep it the same
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a balloon (d) muddy water
37. 37.True or false: tea leaves from tea is done by sieving. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🧺 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) sand and pebbles
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a clean glass (c) muddy water (d) cotton or cloth

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