The Sun was formed about: 4.57 billion years ago
Mercury, Venus, Earth, and Mars are called terrestrial planets because they are small and mainly made up of: Rocks
Jupiter, Saturn, Uranus, and Neptune are called gas giants because they are large and are made up of: Gases
Our sun is one of the ______ of stars in our galaxy: Billions
___ generate their own light: Stars
Which planet is mostly made up of iron and covered with craters: Mercury
Which is the second brightest object in the night sky after the Moon: Venus
The Earth has one moon and its name is: Luna
The largest volcano of the solar system is “Olympus Mons” lies in: Mars
