Earth and Space Vocabulary Study Guide

Flashcards covering Earth and Space vocabulary.

Atmosphere

The blanket of air that surrounds Earth

Hydrosphere

All the water on Earth, including liquid bodies of water, frozen water as ice and snow, groundwater, and vapor in the air

Biosphere

All the living things on Earth

Geosphere

The outer part of Earth composed of solid and liquid rock

Gravity

The force that pulls objects toward each other

Rotation

To spin around; it takes Earth about 24 hours to complete 1 rotation

Revolution

To travel around, or orbit another object; it takes Earth about 365 days to complete 1 revolution

Shadow

The dark area formed when an object blocks the light

Axis

The imaginary line that passes through Earth’s center and its North and South poles

Solar System

A star and all the planets and other objects that revolve around it

Constellations

Visible during di erent seasons due to the Earth’s revolution around the sun