Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 966 · 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 sand and pebbles for the muddy water filter? (a) not needed (b) needed
2. 2.🫗 Which of these is done by handpicking? (a) mud from water (b) husk from rice grain (c) bad grains from rice (d) tea leaves from tea
3. 3.True or false: bran from wheat flour is done by sieving. (a) True (b) False
4. 4.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) salt from sea water (c) sugar from sugar water (d) chaff from wheat grain
5. 5.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) small stones from dal (c) gravel from fine sand (d) bad grains from rice
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
7. 7.⚖️ 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
8. 8.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) handpicking (d) evaporating
9. 9.⚖️ 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) True (b) False
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) a funnel (d) yeast
11. 11.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) muddy water (d) a funnel
13. 13.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
14. 14.🔮 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
15. 15.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
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) False (b) True
18. 18.🫗 Which of these is done by filtering? (a) husk from rice grain (b) small stones from dal (c) mud from water (d) gravel from fine sand
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.⚖️ 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 muddy water (b) the same funnel (c) the filter material (d) the same glass
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
22. 22.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
23. 23.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
24. 24.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
25. 25.True or false: husk from rice grain is done by winnowing. (a) True (b) False
26. 26.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
27. 27.⚖️ 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
28. 28.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
29. 29.🛟 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
30. 30.⚖️ 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 same glass (c) how clear the water is (d) the filter material
31. 31.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a balloon (c) muddy water (d) sand and pebbles
33. 33.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) False (b) True
35. 35.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) sieving (d) filtering
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 muddy water
37. 37.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
38. 38.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) a funnel (d) muddy water
40. 40.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True

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