Unit 2 - Solar System , Stars , and Universe

     The _________________ states that the universe began 13-14 billion years ago

 ______________ was the first space probe to leave our solar system. 

    A _____________ moon is when we see no reflected light.

What are technologies have we gained from Space Exploration? 

Stars are classified by ____________, _____________, and ______________.

The three shapes of galaxies are ___________________, _______________ and ________________.

What two factors cause the change in the seasons?

Protons have a _______ charge

In-between Mars and Jupiter there is an _________________.

As the Moon orbits the Earth it the Moon appears to change shape, these changes are called :

What are other characteristics our planet has that allows it to sustain life?

______________ means the reflected light from the moon is getting smaller 

Our Sun is a ______________ and gets its energy from a process called _________________.

Saturn’s largest moon is called ____________ and has lakes full of ___________.

_______________ means the reflected light from the moon is getting bigger

_______________ orbit the sun but are not massive enough to clear their orbital path.

A space probe called ___________ orbited Saturn for years and collected data.

   _____________ was the Month , Day and Year a human walked on the moon.

 The orbit of an object around another object is called ___________.

The Earth revolves around the sun because of ________________ force.

Stars are measured in degrees _____________.

We currently have a rover on Mars called ____________.

Nuclear Fusion in our Sun is created from __________ being compacted together by ___________________.

What are the three ingredients needed on a planet for life to be possible?

This is a __________ eclipse.

An AU is equal to _______________ miles and ____________ kilometers.

Our nearest spiral galaxy is called ________________ and is _______________ light years away.

The Earth rotates on its axis causing _________ and __________.

AU stands for __________________ 

A moon is a natural _______________ that orbits a planet

At the center of our galaxy, which is called _______________, there is a massive _________________ . 

  A ______________ orbits a star and is massive enough to be spherical in shape and has no other objects in its path.

The inner planets are called _______________ the outer planets are mainly composed of __________________.