Earth and Life Science

1. The outer portion or the outermost layer of the Earth.
3. The science that studies Earth.
6. A natural opening in the surface of the Earth where molten rocks, hot gases, smoked and ash are ejected.
9. An imaginary direction of the planet or body as it revolves around another body.
11. A group of organisms that have certain characteristics in common and are able to interbreed.
14. An ability of an organism to adjust and thrive in a given environment.
15. A scientist who studies the size, shape, composition and makeup of objects in the universe.
17. The gas and aerosol envelope that extends from the ocean, land, and ice-covered surface of a planet outward into space.
18. The ability of an ecosystem to be self-regulating and again become steady after a disturbance.
19. It regarded as the Earth's twin planet.
23. A depression in the seafloor produced by subduction process.
24. An imagined group of stars that form pictures of animals, object and people.
26. Species change over time.
27. The thickest layer of the Earth.
28. Another spectacular group of objects in the solar system and it is seen every 75 years.
30. A break in a rock along which movement has occured.

1. The outermost layer of the Sun and it's called the Sun's crown.
2. It is named after the Roman God if War and it is called Red planet because of its iron or rust contents.
4. A community of organism that live feed and interact with the environment.
5. The boundary that separates the crust and the mantle.
7. A shadow cast in space.
8. The variety of life forms in a particular ecosystem.
10. The movement of planets around the sun in their orbit.
12. Hot molten materials that come out of volcanoes.
13. The vibration of Earth due to the rapid release of energy.
16. The movement of the Sun and planets on their axes.
20. The transport of rock particles and soil from where they were formed to another place.
21. One of the galaxies in the huge universe.
22. The smallest but most violent of all weather disturbances that occur on Earth. Sometimes they called a twister.
25. The second biggest planet in the solar system.
29. The only planet in the solar system that can support life.