Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 465 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a mirror (d) muddy water
2. 2.⚖️ 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 change it (c) we measure it
3. 3.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
4. 4.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
5. 5.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is cold (d) yes, if it is clear
6. 6.True or false: salt from sea water is done by sieving. (a) True (b) False
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
8. 8.🫗 Which of these is done by filtering? (a) bad grains from rice (b) gravel from fine sand (c) bran from wheat flour (d) tea leaves from tea
9. 9.⚖️ 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
10. 10.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
11. 11.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
12. 12.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) handpicking (d) evaporating
13. 13.⚖️ 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 glass (b) the same funnel (c) the filter material (d) the same muddy water
14. 14.⚖️ 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
15. 15.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
16. 16.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) sieving (d) handpicking
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.🫗 How do we separate salt from sea water? (a) handpicking (b) sieving (c) evaporating (d) filtering
19. 19.⚖️ 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
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) sand and pebbles (c) yeast (d) turmeric powder
21. 21.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
22. 22.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
23. 23.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) turmeric powder (d) muddy water
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
26. 26.True or false: husk from rice grain is done by winnowing. (a) False (b) True
27. 27.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
28. 28.True or false: tea leaves from tea is done by filtering. (a) False (b) True
29. 29.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) turmeric powder (d) muddy water
32. 32.⚖️ 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
33. 33.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
34. 34.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a battery cell (d) cotton or cloth
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) sand and pebbles (d) a funnel
37. 37.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) small stones from dal (c) husk from rice grain (d) bran from wheat flour

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