Astronomy: A Universe Tour

Subject: Science  ·  Grade level: 8th

Solar system, stars, galaxies, and how we measure space — a deep dive for curious students.

In this lesson

• Our solar system
• Stars and their life cycles
• Galaxies and the universe
• How astronomers know what they know

Key terms

Astronomical Unit (AU)

Average Earth–Sun distance, ~150 million km.

Light-year

How far light travels in one year — about 9.46 trillion km.

Orbit

The curved path one object takes around another due to gravity.

Astronomy: A Universe Tour lesson on BrightPath

BrightPath Tutoring offers free interactive lessons and 1-on-1 tutoring for students in grades 3–12. Based in the San Fernando Valley, Los Angeles, CA.