Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 473 · 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) a clean glass (b) muddy water (c) cotton or cloth (d) turmeric powder
2. 2.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
3. 3.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) handpicking (d) evaporating
4. 4.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a battery cell (c) a clean glass (d) sand and pebbles
6. 6.True or false: bad grains from rice is done by handpicking. (a) True (b) False
7. 7.⚖️ 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 measure it (b) we change it (c) we keep it the same
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a funnel (d) a battery cell
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a magnet (d) sand and pebbles
10. 10.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
11. 11.⚖️ 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 filter material (c) the same glass (d) the amount poured
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) sand and pebbles (d) a funnel
13. 13.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) chaff from wheat grain (c) sugar from sugar water (d) tea leaves from tea
14. 14.⚖️ 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
15. 15.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) gravel from fine sand (c) mud from water (d) husk from rice grain
16. 16.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
17. 17.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
18. 18.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
19. 19.⚖️ 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) False (b) True
20. 20.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
21. 21.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the filter adds soap (d) the water evaporates
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same muddy water (c) how clear the water is
23. 23.🫗 Which of these is done by winnowing? (a) salt from sea water (b) husk from rice grain (c) gravel from fine sand (d) mud from water
24. 24.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a battery cell (c) a mirror (d) turmeric powder
28. 28.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) yeast (d) cotton or cloth
30. 30.🫗 Which of these is done by evaporating? (a) salt from sea water (b) bad grains from rice (c) bran from wheat flour (d) husk from rice grain
31. 31.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bran from wheat flour (c) husk from rice grain (d) tea leaves from tea
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) muddy water (d) cotton or cloth
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.🫗 Which of these is done by sieving? (a) mud from water (b) sugar from sugar water (c) bad grains from rice (d) bran from wheat flour
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a funnel (d) turmeric powder
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) nothing (d) the mud
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) muddy water (d) a balloon
38. 38.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
39. 39.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed

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