Students will understand the scientific evidence that supports theories that explain how the universe and solar system developed. Students will understand that the features of Earth’s evolving environment affect living systems, and that life on Earth is unique in the solar system. Students will understand that gravity, density, and convection move Earth’s plates and this movement causes the plates to impact other Earth systems. Students will understand that water cycles through and between reservoirs in the hydrosphere and affects the other spheres of the Earth system. Students will understand that Earth's atmosphere interacts with and is altered by the lithosphere, hydrosphere, and biosphere. Students will understand the source and distribution of energy on Earth and its effects on Earth systems.