The sun
This star is at the center of our solar system
what is sun?
Earth’s only natural satellite.
What is the Moon?
Earth is the ___ planet from the Sun.
What is the third?
The Sun is mostly made of these two gases.
What are hydrogen and helium?
The Moon does not make its own light; it does this instead.
What is reflecting sunlight?
The Sun’s energy reaches Earth in about this many minutes.
What is about 8 minutes?
The same side of the Moon always faces Earth because of this.
What is tidal locking?
This process powers the Sun by turning hydrogen into helium.
What is nuclear fusion?
These dark, flat areas on the Moon are called this.
What are maria?
The Sun is about this many times wider than Earth.
What is about 100 times?
Humans first landed on the Moon in this year.
What is 1969?