Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 784 · 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.🫗 Which of these is done by filtering? (a) small stones from dal (b) bad grains from rice (c) gravel from fine sand (d) mud from water
2. 2.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a mirror (c) a balloon (d) a magnet
3. 3.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) bran from wheat flour (c) sugar from sugar water (d) chaff from wheat grain
4. 4.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
5. 5.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
6. 6.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a magnet (d) a clean glass
8. 8.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) salt from sea water (c) chaff from wheat grain (d) bran from wheat flour
9. 9.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
11. 11.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
12. 12.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
13. 13.⚖️ 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
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 keep it the same (b) we measure it (c) we change it
15. 15.⚖️ 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 amount poured
16. 16.True or false: bran from wheat flour is done by sieving. (a) True (b) False
17. 17.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) a battery cell
20. 20.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) a funnel (d) a mirror
22. 22.⚖️ 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 change it (c) we measure it
23. 23.True or false: husk from rice grain is done by winnowing. (a) True (b) False
24. 24.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) sieving (d) filtering
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a mirror (d) a clean glass
27. 27.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) sieving (d) filtering
28. 28.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
30. 30.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
31. 31.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sugar (d) it turns to sand
32. 32.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
33. 33.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) small stones from dal (c) mud from water (d) bran from wheat flour
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) cotton or cloth (d) a balloon
35. 35.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) salt from sea water (c) bad grains from rice (d) bran from wheat flour
36. 36.⚖️ 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) False (b) True
37. 37.🫗 How do we separate salt from sea water? (a) sieving (b) evaporating (c) filtering (d) handpicking
38. 38.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
39. 39.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) muddy water (d) a clean glass

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