| fossil | | the curved path around an object, the planets follow around the sun |
| sedimentary rock | | the condition of the atmosphere at a certain place and time |
| air pressure | | the process by which a liquid becomes a gas |
| atmosphere | | to mix very evenly and separate into particles |
| gravity | | a resource that can be used up coal, oil, and natural gas |
| moon | | the weight of the air; a cause of weather |
| dissolve | | caused by the revolution and the tilt of the Earth on its axis |
| renewable resource | | the third planet from the sun |
| fossil fuel | | a substance, such as coal, petroleum, or natural gas, formed over millions of years from the remains of organisms and used today as an energy source |
| axis | | a crackin the Earth where Earthquakes occur |
| erosion | | the careful use of natural resourses |
| evaporation | | the process of dropping sediment in a new location |
| weather | | silt, or soil, good for plant growth because it absorbs water |
| water cycle | | the carrying away of rock or soil by wind, water, or ice |
| rotation | | energy from the sun |
| sediment | | the thin layer of air between Earth's surface and space |
| Mercury | | a movement and shaking of the Eargh caused by shifting of the Earth's plates |
| conservation | | the imaginary line on which the Earth is tilted and rotates |
| solar energy | | the force that caused attraction between objects that have mass |
| Earth | | the remains or traces of past life found in sedimentary rock |
| tides | | the trip the Earth makes around the sun once every year |
| revolution | | any form of water that falls from the clouds to Earth |
| orbit | | a process that breaks down rocks |
| seasons | | the process by which water is renewed an dused over and over again on the Earth |
| recycle | | the change in a substance from a gas to a liquid |
| deposition | | a natural satelite of planets |
| fault | | the closest planet from the sun |
| nonrenewable resources | | rock that contains fossils |
| Earthquake | | the movement of the ocean caused by the gravitational pull of the moon |
| precipitation | | a resource that can be replaced in a short time |
| Condensation | | to reuse materials |
| weathering | | the turning of the Earth on its imaginary axis caused day and night |
