THE SOLAR SYSTEM

Everything we can touch, feel, perceive, measure or detect.

The path an object takes in space.

Grouping of stars, celestial bodies, and cosmic matter that is concentrated in a certain region of space by gravitational attraction; a unit in the universe.

Large spheres of glowing gases that emit light and heat.

The heliocentric theory or model states that this star is located at the center of the solar system.

It has a diameter of about 2,159 miles, so it is four times smaller than Earth.

• Moon

• Sun

• Dwarf planet

• Milky Way

Group of stars that form patterns.

Share its orbital space with other similar sized celestial bodies.

(Example = Pluto)

How many days does it take for the Moon to complete orbit around Earth?

• 30 Earth days

• 27 Earth days

• 7 Earth days

• 25 Earth days

How long does a lunar cycle last?

• 31 days

• 27 days

• 20 days

• 29 days