The Sun is a star! Energy from the Sun makes our planet warm.
On a clear night, you might see about 3,000 stars in the sky. But there are billions more that you cannot see.
Stars create energy that makes them shine. They are made of hot gases.
Stars have different temperatures. The hottest stars look blue. The coolest stars look red. Yellow stars, like Earth’s sun, have a temperature between blue and red stars.
Ask a grown up to take you outside after dark and look at the sky. What can you see?
Sticker page
Stick another hot star and a cool star on this page.…
