1. The Solar System

2. Glossary
Solar System- A solar system is a star, the planets, moons, and other bodies orbiting it.

3. How Big is the Earth?
What shape is the Earth?

4. How Big is the Earth? What shape is the Earth?
The radius of Earth (from the center of the core to the surface at the equator) is approximately 4000 miles.

5. How Big is the Sun? What shape is the Sun?
The radius of the Sun is approximately miles.
What is the Sun’s….
Diameter? 2r
Circumference? C= d×pi
Surface Area? 4×pi×r2
Volume? 4/3×pi×r3

6. Special Challenge
Write the surface area, circumference, and volumes of Sun and Earth in scientific notation.

7. How much bigger is the Sun than Earth
How much bigger is the Sun than Earth? 1 Million Earths would fill the volume of the Sun

8. How far away are the other planets in the solar system
How far away are the other planets in the solar system? Convert to normal notation
Mercury is 5.8 x 107 km from the Sun
Venus is 1.1 x 108 km from the Sun
Earth is 1.5 x 108 km from the Sun
Mars is 2.3 x 108 km from the Sun
Jupiter is 7.8 x 108 km from the Sun
Saturn is 1.4 x 109 km from the Sun
Uranus is 2.8 x 109 km from the Sun
Neptune is 4.5 x 109 km from the Sun
What is the total distance between the Sun and Neptune?

9. How Far is that really….
The Sun is 1.4 x 105 miles in diameter- 130 times the diameter of the Earth.
If the Sun had a diameter of 1 inch, Neptune would be 100 meters away. That makes the solar system HUGE
Draw a random planet, you will stand in that planet’s place for the activity.
Distances for simulation activity