There are a lot of stars. People can see only a very small number of them from ______________.

Our sun is a huge ball of fire that radiates ______________.

Like our sun, stars shine ______________ in all directions.

Even though ___________ travels very fast, most stars are so far away that it takes millions of years for their light to reach Earth.

So when you see a star, you can see light that was produced millions of years ago. This means that when you look at the starry night sky, you actually look into the ___________.

Planets, on the other hand, do not generate __________.

You see planets because they are relatively close to the sun, and they are lit by the sun. Light travels from the sun to the planets and then _______________ off of them.

The universe contains billions of galaxies, but most of the stars you see in the sky belong to the Milky Way ___________.

The Milky Way galaxy consists of _____________ of billions

of stars, one of which is Earth’s sun. People call it “the sun,” as though there is only one. But the universe contains many other suns, too.

The Earth’s sun is not at the center of the Milky Way, like it sometimes seems to be in pictures. The ___________ is actually off to one side.

Eight planets, their moons, and other objects such as asteroids and ____________, move around the Earth’s sun.

All the other objects in the solar system are arranged around the sun. The objects are constantly ____________ in orbits around the sun.

The shape of the path each planet makes around the sun. These paths are called _____________.

Scientists used to think there were nine planets in the solar system— the eight that are in the diagram and Pluto. A few years ago, scientists decided that _________ was not a planet.

Scientists believe that all the planets in the solar system originated from a huge cloud of gas and dust that used to surround the ___________.

When a person sees a star at night, it is because that particular star produced its own light millions of years ago. This means that when you are looking into a starry sky you are actually looking into the past.

Planets generate their own light which is why they can be seen through a telescope.

There is a full moon out. However, when you look up into the sky, you cannot see the full moon. Why is this?

The sun is one of hundreds of billions of stars that make up the Milky Way Galaxy.

The sun is the largest object in the Earth’s solar system. It makes up more that 99% of the solar system's total mass.

Is the sun a star?

Which planet in our solar system is closest to the Sun?

What is the center of our solar system?

What is energy created by the sun called?

Which is the planet that we live on?

What is the name of this planet?

Which planet is closest to the Sun?

Which planet has rings that you can see?

We are Bulldogs!