Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 675 · 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 needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a magnet (d) yeast
2. 2.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) bran from wheat flour (c) sugar from sugar water (d) salt from sea water
3. 3.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
4. 4.🫗 Which of these is done by sieving? (a) husk from rice grain (b) small stones from dal (c) gravel from fine sand (d) bad grains from rice
5. 5.True or false: bad grains from rice is done by sieving. (a) False (b) True
6. 6.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) cotton or cloth (d) a funnel
8. 8.True or false: mud from water is done by filtering. (a) True (b) False
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) turmeric powder (d) a funnel
10. 10.True or false: tea leaves from tea is done by filtering. (a) False (b) True
11. 11.⚖️ 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
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same muddy water (c) the amount poured (d) how clear the water is
13. 13.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) cotton or cloth (d) yeast
15. 15.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) muddy water (d) cotton or cloth
17. 17.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
18. 18.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) yeast (d) a clean glass
20. 20.🫗 Which of these is done by evaporating? (a) small stones from dal (b) salt from sea water (c) tea leaves from tea (d) mud from water
21. 21.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
22. 22.True or false: salt from sea water is done by evaporating. (a) True (b) False
23. 23.🫗 Which of these is done by winnowing? (a) salt from sea water (b) husk from rice grain (c) bran from wheat flour (d) small stones from dal
24. 24.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) sugar from sugar water (c) gravel from fine sand (d) chaff from wheat grain
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same funnel (c) the amount poured (d) the same muddy water
27. 27.True or false: yeast is needed for the muddy water filter. (a) True (b) False
28. 28.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves stay behind (d) leaves pass through
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
30. 30.⚖️ 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) True (b) False
31. 31.🫗 How do we separate husk from rice grain? (a) winnowing (b) sieving (c) evaporating (d) handpicking
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a clean glass (d) turmeric powder
33. 33.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
34. 34.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
35. 35.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
36. 36.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) winnowing (c) sieving (d) evaporating
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.⚖️ 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
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a funnel (c) cotton or cloth (d) muddy water

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