1. Solar system

2. Answer questions at your table
Why do the planets revolve around the Sun, and not the other way around?
Why do moons revolve around their planets?

3. Answer questions at your table
3. If the Sun has a strong enough gravitational pull to keep planets in orbit around them, why do the planets not get pulled into the Sun?

4. Exit slip
Which of the following would have the greatest gravitational pull?
a.) a car
b.) the moon
c.) Jupiter
2. Why?

5. Bell ringer
Emmy’s looked out her window and saw the Moon and stars. She wondered how far away they were. Choose the answer that best describes where you think the Moon and stars are that Emmy sees.
A. There are no stars between the Earth and the Moon
B. One star is between the Earth and the Moon
C. A few stars are between the Earth and the Moon
D. There are many stars between the Earth and the Moon.
E. Several stars are between the Moon and the edge of our solar system.

6. How many Earth’s can you fit into the volume of the sun?

7. The Sun Rotates on an axis
Source of heat and light for our solar system
Medium size star
Sphere of burning gas
A million times bigger than the earth
No real surface
Temperature on the surface is 5,600 degrees c

8. Earth 3rd planet from the sun 4 times larger than the moon
Rotates every 24 hours on an axis
Has water and atmosphere
Life: plants & living things
Only planet to support life
Sphere of rock

9. Moon Sphere of rock Rotates on an axis NO atmosphere NO life
surface scarred and cratered
Natural satellite
29 days to revolve around the Earth
Orbits the Earth

10. The 8 planets M V E J S U N y Mercury ery Venus ducated Earth other
Mars J
ust
Jupiter S
erved
Saturn U s
Uranus N
achos
Neptune

11. rotation One Earth day is equal to 24 hours
It takes 24 hours for Earth to spin on its axis
Spins on an imaginary axis

12. Revolution One Earth year is equal to 365 days
It takes 365 days for Earth to go around the sun.

13. Our solar system is one of millions maybe billions of systems.
In the center is a medium sized star called the sun with 8 planets.
Each planet orbits the sun.