What is the name of this model?

What is Kepler's 1st law?

Ptolemy used epicycles to explain the motions of the sun, moon, and planets in his ____ model of the solar system. that had everything orbiting Earth.

This astronomer confirmed the heliocentric theory with his telescope and discovered 4 moons of Jupiter.

Which astronomer developed the first detailed heliocentric model of the solar system?

Which astronomer believed that gravity and inertia keep the planets in orbit?

Which of the following astronomers believed in a geocentric model of the solar system?

What was the missing force in Kepler's 3 Laws of Planetary Motion that Newton later discovered?

which astronomer discovered sunspots and the sun's rotational period?

At what point in orbit will a planet speed up?

What is the eccentricity of a perfect circle?

What two factors affect the gravitational pull of an object?

An astronomical unit is the distance from the __________ to ______________.

Which of the planets has the shortest orbital period?

Every object attracts every other object. This is....

Which of the following is constant, meaning it does not change based on location?

Which astronomer was the first to say that the Earth is shaped like a sphere?

Rate yourself on your knowledge of early astronomy, models, planetary laws and gravity.

An area on the surface of the Sun that appears darker than other areas on the Sun

What are large loops on the surface of the sun that release a large amount of energy?

Label part 6

This is the suns outer atmosphere

Most of the sun’s energy is a result of

Label part 1

Label part 5

Label Part 3

Label Part 2

Energy is created in the core when two _____________ atoms join together to form a ______________ atom.

Because of the tilt of the Earth, as it revolves around the sun, this happens

The amount of light you see on the moon as it goes around the Earth

Which type of Eclipse is shown in the picture?

Which type of Eclipse is shown in the picture?

Less than average tide occurring 1st and 3rd quarters of the moon

Highest tides when the Earth, sun and moon are lined up in a row

What is the center, darker part of an eclipse shadow called?

What is the lighter part of an eclipse shadow, where the light is only partially blocked, called?

Which letter or letters in the picture identify the umbra?

Which letter or letters in the picture identify the penumbra?

Earth is tilted at _____________ degrees.

On which of the following days the day and night are of equal duration throughout the world?

When the moon waxes, it

When the moon wanes, it

Which moon is shown in the picture?

Which phase of the moon is shown in the picture?

What planet is closest to the sun?

What are the four inner planets?

Which planet below is farthest from the sun?

What are the outer planets?

The outer planets are considered the Gas Planets

The Inner Planets are rocky and have craters on the surface

What is the name of the only planet that supports life?

The sun is a ___________.

The Planets do not rotate around the sun.

Which planet is known as Earth's twin because it is a similar size?

Which planet do scientists think we may be able to walk on in 20 years?

What is the smallest planet in the solar system?

Which planet is known as the Red Planet because of it's red rocky surface?

Stars are formed from big clouds of gas and dust is known as:

The main force acting on a nebula is:

A star is born when:

The two forces battling it out for the stability of a star are gravitational forces and:

A star that has ignited and has used up all of the hydrogen is called:

When the core of a Red Giant collapses it becomes a:

When a massive star begins to cool and expand it is known as a:

When the core of a Red Supergiant collapses, a bright event occurs, known as:

After a supernova, the core can collapse into a neutron star, or if massive enough it can become a:

When a Red Giant's outer atmosphere drifts away it is now known as:

One possible outcome that is left after a supernova is a super dense core called a:

A black hole is black because:

Our sun is currently in what star stage?

Main sequence stars are made primarily of which elements?

A star that has begun nuclear fusion will last for:

When a nebula condenses and takes on a shape it is called:

The stable and longest lasting period of a star’s life cycle is called:

What fuel do main sequence stars use?

Neutron stars that emit radiowaves are called: