Science Lesson 1 Vocab Review

An imaginary line about which a body (planet) rotates.

• axis

• orbit

• diameter

• geocentric

The Sun is at the center and the Earth revolves around the Sun.

• Rotation

• Geocentric

• Heliocentric

• Revolution

The act or process of rotating an axis or center.

• diameter

• orbits

• revolution

• rotation

The curved path of a celestial object or space craft around a star, planet, or moon.

• orbits

• axis

• diameter

• rotation

Earth is at the center and the Sun revolves around the Earth

• Earthcentric

• Geocentric

• Heliocentric

• Suncentric

Straight line passing from side to side through the center of a body or figure.

• diameter

• orbits

• axis

• equator

The action of a celestial body of going round in an orbit or elliptical course.

• Axis

• Rotation

• Orbits

• Revolution