Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 126 · 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) a magnet (b) muddy water (c) cotton or cloth (d) a clean glass
2. 2.⚖️ 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 change it (c) we measure it
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
4. 4.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
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) True (b) False
6. 6.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
7. 7.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🛟 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
10. 10.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
11. 11.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) yeast (c) a clean glass (d) cotton or cloth
14. 14.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
15. 15.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) filtering (d) winnowing
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same muddy water (c) the same glass (d) how clear the water is
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) turmeric powder (d) muddy water
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
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 change it (b) we measure it (c) we keep it the same
21. 21.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
22. 22.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) small stones from dal (c) sugar from sugar water (d) bran from wheat flour
23. 23.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
24. 24.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) muddy water (d) a clean glass
27. 27.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
28. 28.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
29. 29.🫗 How do we separate sugar from sugar water? (a) handpicking (b) filtering (c) sieving (d) evaporating
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a balloon (d) a battery cell
31. 31.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
32. 32.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) a balloon (d) a battery cell
33. 33.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bran from wheat flour (c) husk from rice grain (d) mud from water
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same muddy water (c) the filter material (d) the amount poured
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) muddy water (d) turmeric powder
36. 36.True or false: small stones from dal is done by handpicking. (a) False (b) True
37. 37.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
39. 39.True or false: yeast is needed for the muddy water filter. (a) True (b) False
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a clean glass (c) muddy water (d) sand and pebbles

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