Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 949 · 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.🫗 How do we separate tea leaves from tea? (a) filtering (b) evaporating (c) sieving (d) winnowing
2. 2.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
5. 5.True or false: bad grains from rice is done by winnowing. (a) True (b) False
6. 6.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
7. 7.🫗 Which of these is done by handpicking? (a) salt from sea water (b) gravel from fine sand (c) sugar from sugar water (d) small stones from dal
8. 8.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same glass (c) the filter material (d) the amount poured
10. 10.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
11. 11.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is clear (d) yes, if it is cold
12. 12.True or false: mud from water is done by evaporating. (a) False (b) True
13. 13.🫗 Which of these is done by filtering? (a) husk from rice grain (b) bad grains from rice (c) mud from water (d) salt from sea water
14. 14.True or false: husk from rice grain is done by handpicking. (a) False (b) True
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a battery cell (c) a clean glass (d) muddy water
16. 16.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) a battery cell (d) a balloon
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
19. 19.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
20. 20.🔮 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 sand (d) it turns to sugar
21. 21.True or false: mud from water is done by filtering. (a) True (b) False
22. 22.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.True or false: salt from sea water is done by sieving. (a) True (b) False
25. 25.🧺 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
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) muddy water (c) sand and pebbles (d) cotton or cloth
27. 27.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) small stones from dal (c) sugar from sugar water (d) bran from wheat flour
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) muddy water (d) turmeric powder
30. 30.True or false: bad grains from rice is done by handpicking. (a) False (b) True
31. 31.⚖️ 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
32. 32.⚖️ 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 same glass (d) the filter material
33. 33.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
34. 34.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
35. 35.⚖️ 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 same glass (c) the filter material
36. 36.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) sand and pebbles (d) a funnel
38. 38.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) chaff from wheat grain (c) bad grains from rice (d) salt from sea water
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False

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