Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 507 · 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.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) muddy water (d) sand and pebbles
3. 3.True or false: gravel from fine sand is done by filtering. (a) True (b) False
4. 4.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
5. 5.⚖️ 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
6. 6.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
7. 7.⚖️ 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) True (b) False
8. 8.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a balloon (d) muddy water
10. 10.True or false: mud from water is done by evaporating. (a) True (b) False
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a clean glass (c) cotton or cloth (d) sand and pebbles
12. 12.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
13. 13.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
15. 15.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
16. 16.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier
17. 17.⚖️ 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 change it (c) we measure it
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a clean glass (c) a funnel (d) sand and pebbles
19. 19.True or false: bad grains from rice is done by sieving. (a) False (b) True
20. 20.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the water evaporates (d) the mud dissolves
21. 21.True or false: tea leaves from tea is done by filtering. (a) True (b) False
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) cotton or cloth (d) yeast
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) muddy water (d) a battery cell
24. 24.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
25. 25.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a funnel (c) yeast (d) turmeric powder
27. 27.True or false: yeast 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? Which of these is kept the same? (a) the filter material (b) the same glass (c) how clear the water is
29. 29.⚖️ 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 same funnel (c) the filter material (d) the same glass
30. 30.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
31. 31.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
32. 32.⚖️ 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 measure it (c) we change it
33. 33.⚖️ 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) False (b) True
34. 34.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
35. 35.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) a magnet (d) muddy water
37. 37.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
38. 38.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) handpicking (d) sieving
39. 39.True or false: salt from sea water is done by evaporating. (a) True (b) False
40. 40.⚖️ 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

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