Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 289 · 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.⚖️ 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
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
3. 3.🫗 Which of these is done by filtering? (a) salt from sea water (b) husk from rice grain (c) gravel from fine sand (d) tea leaves from tea
4. 4.⚖️ 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
5. 5.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a clean glass (d) a mirror
7. 7.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bad grains from rice (c) tea leaves from tea (d) mud from water
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a clean glass (c) a funnel (d) sand and pebbles
12. 12.⚖️ 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
13. 13.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
14. 14.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) bad grains from rice (d) sugar from sugar water
15. 15.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a magnet (d) a funnel
17. 17.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a mirror (d) muddy water
18. 18.🛟 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
19. 19.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
20. 20.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) the salt (d) nothing
21. 21.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) a battery cell (d) yeast
22. 22.True or false: gravel from fine sand is done by sieving. (a) False (b) True
23. 23.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a funnel (c) a magnet (d) a battery cell
24. 24.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
25. 25.True or false: bran from wheat flour is done by sieving. (a) False (b) True
26. 26.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
27. 27.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
28. 28.⚖️ 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
29. 29.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) clearer (d) hot
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the same funnel (d) the filter material
31. 31.🧺 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) a balloon
32. 32.True or false: bad grains from rice is done by handpicking. (a) True (b) False
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) yeast (d) muddy water
34. 34.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
35. 35.⚖️ 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 amount poured (c) the filter material (d) the same muddy water
36. 36.🫗 How do we separate salt from sea water? (a) filtering (b) winnowing (c) sieving (d) evaporating
37. 37.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
38. 38.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
39. 39.True or false: bad grains from rice is done by filtering. (a) True (b) False
40. 40.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) sugar from sugar water (c) husk from rice grain (d) small stones from dal

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