Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 29 · 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 funnel for the muddy water filter? (a) needed (b) not needed
2. 2.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) a magnet (d) a battery cell
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) yeast (d) cotton or cloth
4. 4.⚖️ 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
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.True or false: salt from sea water is done by evaporating. (a) True (b) False
7. 7.⚖️ 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
8. 8.🫗 How do we separate bran from wheat flour? (a) filtering (b) winnowing (c) sieving (d) evaporating
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a mirror
10. 10.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a battery cell (c) cotton or cloth (d) muddy water
12. 12.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
14. 14.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) husk from rice grain (c) sugar from sugar water (d) gravel from fine sand
15. 15.🫗 Which of these is done by sieving? (a) small stones from dal (b) husk from rice grain (c) bad grains from rice (d) bran from wheat flour
16. 16.🔮 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
17. 17.🔮 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) yes, all of it (d) it turns to sand
18. 18.True or false: yeast is needed for the muddy water filter. (a) False (b) True
19. 19.🫗 How do we separate salt from sea water? (a) winnowing (b) handpicking (c) sieving (d) evaporating
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) a clean glass (d) cotton or cloth
21. 21.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
22. 22.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same glass
24. 24.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
25. 25.🫗 How do we separate mud from water? (a) handpicking (b) sieving (c) filtering (d) winnowing
26. 26.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same funnel (c) the amount poured (d) how clear the water is
29. 29.🫗 Which of these is done by winnowing? (a) mud from water (b) bran from wheat flour (c) sugar from sugar water (d) chaff from wheat grain
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
31. 31.True or false: salt from sea water is done by winnowing. (a) True (b) False
32. 32.🫗 Which of these is done by filtering? (a) husk from rice grain (b) mud from water (c) bad grains from rice (d) gravel from fine sand
33. 33.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
34. 34.True or false: small stones from dal is done by sieving. (a) True (b) False
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) cotton or cloth (d) a funnel
36. 36.⚖️ 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
37. 37.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
38. 38.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
39. 39.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) handpicking (d) evaporating
40. 40.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed

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