Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 532 · 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.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
4. 4.⚖️ 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 measure it (c) we change it
5. 5.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
6. 6.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
7. 7.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a magnet (d) sand and pebbles
9. 9.⚖️ 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
10. 10.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
11. 11.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) sugar from sugar water (c) salt from sea water (d) bran from wheat flour
12. 12.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) sieving (d) evaporating
13. 13.🛟 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
14. 14.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bran from wheat flour (c) tea leaves from tea (d) small stones from dal
15. 15.⚖️ 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 filter material (c) the same glass (d) the same funnel
16. 16.⚖️ 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
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a mirror (d) cotton or cloth
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
19. 19.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a clean glass (d) turmeric powder
21. 21.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) sand and pebbles (d) a clean glass
23. 23.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
24. 24.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a mirror (d) sand and pebbles
26. 26.True or false: gravel from fine sand is done by sieving. (a) True (b) False
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
28. 28.⚖️ 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) True (b) False
29. 29.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) salt from sea water (c) chaff from wheat grain (d) husk from rice grain
30. 30.True or false: tea leaves from tea is done by filtering. (a) False (b) True
31. 31.🫗 How do we separate mud from water? (a) winnowing (b) sieving (c) evaporating (d) filtering
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) the amount poured (b) the filter material (c) the same glass (d) the same muddy water
33. 33.🫗 How do we separate bran from wheat flour? (a) winnowing (b) filtering (c) handpicking (d) sieving
34. 34.⚖️ 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) True (b) False
35. 35.⚖️ 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 keep it the same (b) we measure it (c) we change it
36. 36.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
38. 38.⚖️ 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
39. 39.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
40. 40.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False

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