Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 677 · 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) muddy water (b) a clean glass (c) cotton or cloth (d) turmeric powder
2. 2.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) filtering (d) evaporating
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 funnel (b) the same muddy water (c) the amount poured (d) the filter material
4. 4.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) sugar from sugar water (c) salt from sea water (d) small stones from dal
5. 5.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) bad grains from rice (c) small stones from dal (d) mud from water
6. 6.🛟 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
7. 7.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) winnowing (d) filtering
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a clean glass (c) cotton or cloth (d) sand and pebbles
9. 9.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) sugar from sugar water (c) bad grains from rice (d) chaff from wheat grain
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a clean glass (c) a funnel (d) muddy water
11. 11.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
12. 12.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
13. 13.🫗 How do we separate bran from wheat flour? (a) filtering (b) winnowing (c) sieving (d) handpicking
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.True or false: tea leaves from tea is done by sieving. (a) True (b) False
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
17. 17.🧺 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) sand and pebbles
18. 18.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
19. 19.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
20. 20.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
21. 21.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) muddy water (d) yeast
22. 22.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
23. 23.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
26. 26.True or false: bad grains from rice is done by evaporating. (a) False (b) True
27. 27.True or false: mud from water is done by filtering. (a) True (b) False
28. 28.🫗 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
29. 29.⚖️ 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
30. 30.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
31. 31.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
32. 32.True or false: bran from wheat flour is done by filtering. (a) True (b) False
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a balloon (d) a clean glass
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
35. 35.True or false: salt from sea water is done by evaporating. (a) False (b) True
36. 36.⚖️ 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 filter material (c) the same glass
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the amount poured (c) how clear the water is (d) the filter material
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
39. 39.⚖️ 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
40. 40.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind

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