Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 823 · 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.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
2. 2.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
3. 3.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a battery cell (d) yeast
5. 5.⚖️ 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 change it (c) we measure it
6. 6.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) muddy water (d) turmeric powder
7. 7.True or false: gravel from fine sand is done by sieving. (a) False (b) True
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
9. 9.⚖️ 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 measure it (c) we keep it the same
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a magnet
11. 11.⚖️ 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
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 chaff from wheat grain? (a) evaporating (b) handpicking (c) filtering (d) winnowing
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) cotton or cloth (d) a funnel
15. 15.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) sand and pebbles (d) a funnel
18. 18.🫗 Which of these is done by winnowing? (a) mud from water (b) husk from rice grain (c) bad grains from rice (d) tea leaves from tea
19. 19.🫗 Which of these is done by filtering? (a) bad grains from rice (b) chaff from wheat grain (c) sugar from sugar water (d) tea leaves from tea
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a balloon
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 funnel (b) the filter material (c) how clear the water is (d) the same muddy water
22. 22.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) cotton or cloth (d) yeast
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
25. 25.⚖️ 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
26. 26.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) it turns to sand (d) yes, all of it
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
28. 28.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) salt from sea water (c) chaff from wheat grain (d) tea leaves from tea
29. 29.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
30. 30.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
31. 31.True or false: bad grains from rice is done by sieving. (a) True (b) False
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) a magnet (d) sand and pebbles
33. 33.True or false: salt from sea water is done by winnowing. (a) False (b) True
34. 34.🫗 How do we separate salt from sea water? (a) filtering (b) winnowing (c) evaporating (d) handpicking
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
37. 37.True or false: gravel from fine sand is done by winnowing. (a) True (b) False
38. 38.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
39. 39.⚖️ 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
40. 40.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bran from wheat flour (c) mud from water (d) bad grains from rice

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