This planet is closest to the Sun.
What is Mercury?
The Sun gives us this, which keeps Earth warm and bright.
What is light and heat?
Earth spins on this imaginary line.
What is its axis?
Our solar system is part of this giant collection of stars and planets.
What is the Milky Way Galaxy?
The Moon reflects this from the Sun so we can see it at night.
What is light?
This red planet is known for its dusty surface and volcanoes.
What is Mars?
The Moon’s pull on Earth’s oceans causes this to happen.
What are tides?
One full rotation of Earth causes this to happen.
What is day and night?
Scientists believe the universe began with a huge explosion called this.
What is the Big Bang?
The fifth planet from the Sun and the largest of all.
What is Jupiter?
This planet is the largest in our solar system.
What is Jupiter?
When the Moon seems to block the Sun, it’s called this.
What is a solar eclipse?
Earth takes one year to do this around the Sun.
What is a revolution?
The Sun, planets, and moons are all part of this system.
What is the Solar System?
Saturn, Uranus, and Neptune all have these around them.
What are rings?
This planet has beautiful rings made of ice and rock.
What is Saturn?
These are giant balls of burning gas far away in space.
What are stars?
The tilt of Earth’s axis causes these changes in weather.
What are the seasons?
A person who studies stars and planets is called this.
What is an astronomer?
The only planet known to have liquid water and life.
What is Earth?
These four planets are made of rock and are closest to the Sun.
What are Mercury, Venus, Earth, and Mars?
The Moon’s shape seems to change over a month because of this.
What are the phases of the Moon?
The Moon revolves around this object.
What is Earth?
Space beyond Earth’s atmosphere is called this.
What is outer space?
This tool helps scientists see planets and stars from far away.
What is a telescope?