1. Our Solar System

2. Our Solar System
Most of our Solar System is “empty” – meaning it lacks __________
Our Solar System is made up of:
The Sun
Planets
Moons
Asteroids
Comets
Meteoroids
mass

3. Solar Systems orbiting Sun gravitational
The term “solar system” refers to any star (or group of stars) that has non-stars _____________ around it
Our Solar System is made up of the ______ and all other objects that orbit under its _________________ influence
orbiting
Sun
gravitational

4. The Sun The Sun Main Sequence gravitational 99
Our Solar System revolves a large mass at the center called ___________
Our Sun is a medium-sized ___________________ star about 5 billion years old
The Sun is the __________________ center of our Solar System
It makes up about ____ percent of the mass of the whole Solar System
The Sun
Main Sequence
gravitational 99

5. The Sun
The Sun produces its energy in its _________ through a process called Nuclear _________
core
Fusion

6. The Planets 8 spherical Terrestrial Planets Jovian Planets
There are ___ planets in our Solar System
The planets are the largest objects that orbit the Sun
Planets are generally ____________ in shape
There are two types of planets in our Solar System:
________________________
spherical
Terrestrial Planets
Jovian Planets

7. Terrestrial Planets closest solid densities
The Terrestrial Planets are the planets that are __________ to the Sun
They are mostly ______ with very high ___________
The Terrestrial Planets in our Solar System are:
Mercury
Venus
Earth
Mar
These planets are the most like Earth out of all of the planets in the Solar System
solid
densities

8. Terrestrial Planets

9. Jovian Planets far away gaseous size density
The Jovian Planets are _____________ from the Sun
These planets are mostly ___________ but do have a solid core
They are extremely large in ______ but low in ___________
The Jovian Planets in our Solar System are:
Jupiter
Saturn
Uranus
Neptune
gaseous
size
density

10. Jovian Planets

11. Asteroids metallic spherical atmosphere Definition:
An asteroid is a solid rocky or __________ body that independently orbits the Sun
Asteroids have an irregular shape, however they get more ___________ as they get larger
They do not have an ______________
metallic
spherical
Asteroids are smaller than planets and are often referred to as “minor planets”
atmosphere

12. Asteroids
Most asteroids are in orbits between Mars and __________
Jupiter

13. Moons orbits 175 Mercury Definition:
A moon is a body that __________ a planet or asteroid as those objects orbit the Sun
There are approximately _____ known moons
Moons can vary in size from larger than ___________ to only a few kilometers in diameter
orbits
175
Mercury

14. Moons appearance Moons can vary greatly in their ______________
Some moons have craters (like our moon), volcanoes, ice, etc.

15. Comets ice rocky Definition:
A comet is a solid composed mostly of _____ made from frozen water and methane
They are usually covered in small pieces of ________ or metallic solids
Most comets are only 1 to 100 kilometers in diameter
ice
rocky

16. Comets
When comets get near the Sun, some of their ices turn to ________
As theses gases are released they form spectacular _______ visible in the Earth’s sky
gases
tails

17. Meteoroids dime Definition:
Meteoroids are very small solid fragments that orbit the Sun
Most meteoroids are the size of a _______ or a grain of sand
There is a difference between:
Meteoroids
Meteors
and Meteorites
dime

18. Meteors
A meteoroid that is passing through the Earth’s _______________ is called a METEOR
As they burn up, they leave a brief streak that we can see from Earth
atmosphere

19. Meteorite Earth’s surface depression
If a meteoroid survives its trip through Earth’s atmosphere and lands on the _________________ it is called a METEORITE
Some meteorites have enough mass to create a _______________ in the Earth’s crust called an IMPACT CRATER
How would these impact craters be indicated on a topographic map?
Earth’s surface
depression

20. Impact Crater in AZ