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Earth Science

Across
Study of objects beyond Earth's atmosphere
All organisms on Earth as well as the environments in which they live
Area from the surface of Earth down to its center
Study of Earth's oceans
All the water on Earth, including the water in the atmosphere
Down
The blanket of gases that surrounds our planet
Study of the forces and processes that cause the atmosphere to change and produce weather
The region of permanently frozen water on Earth
Study of the materials that make up the Earth, the processes that form and change these materials