1. The Big Picture
●* We live on planet Earth which is part of our
local Solar System.
●
● * Our Solar System includes the Sun and
everything that orbits the Sun.
●
● * Our Sun, is just one Star in the
●Milky Way Galaxy.
●
● * The Milky Way Galaxy is just one Galaxy in
the Universe.
●

2. Welcome to our Galaxy!
• We live in the Milky Way galaxy
It is a spiral galaxy
It has about 200 billion stars
(200,000,000,000)
It is 100,000 light years wide and up to 25,000
light years thick

3. Welcome to our Galaxy!
It is 100,000 light years wide and up to 25,000
light years thick
There might be 100,000,000,000 galaxies in our
universe!

4. The Sun
The sun is the center of the solar system
All the planets in our solar system rotate and
revolve around the sun

5. The Sun
The temperature on the surface
of the sun is about 5,500 °C.
The center of the sun
is about 15,000,000 °C

6. The Inner Planets
They are smaller and made mainly of rock

7. The Outer Planets
They are bigger and made mainly of gas

8. The Planets

9. The Earth
Earth is one of eight planets in our solar system
Each planet has its own
satellites
The moon is a
satellite of Earth

10. The Asteroid Belt
● Asteroids are fragments of rock which move
between the inner and outer planets

11. Constellations
● The Big Dipper Orion