Earth In Space Vocabulary

The star at the center of our solar system.

• star
• orbit
• sun
• galaxy

An imaginary line around Earth equally distant from the North and South Poles.

• axis
• orbit
• equator
• constellation

To spin on an axis.

• revolve
• rotate
• orbit
• refraction

Any natural body that revolves around a planet.

• moon
• planet
• star
• sun

The path one body takes in space as it revolves around another body.

• rotate
• revolve
• orbit
• eclipse

A huge ball of very hot gasses in space.

• moon
• planet
• crater
• star

An imaginary line that passes through Earth's center and its North and South Poles.

• rotate
• axis
• revolve
• equator

Someone who studies the stars

• Geologist
• Biologist
• Starologist
• Astronomer

Motion about a center point or axis

• rotation
• atmosphere
• scale
• curve

An area of gas surrounding a planet

• atmosphere
• galaxy
• universe
• planets