Astronomy Unit Quiz

The process of _________________ gives the sun its energy.

The inner planets are different from the outer planets because the inner planets....

a spinning neutron star that emits rapid pulses of radio and optical energy is a 

small, rocky bodies that travel through space

a bright streak of light caused by a meteoroid or comet dust burning up in the atmosphere is a

A small, hot , dim star that is the leftover center of an old star is a ....

What length of time is needed for Earth to make one revolution?

A main sequence blue star would be a ____________ star.  

Earth belongs to a group of planets called the ________________.  

These two planets do not have natural satellites.

The invention of this instrument made the discovery of additional planets possible.

a star in which the electrons and protons have become neutrons is a ....

small, rocky bodies that revolve around the sun, usually in a band between Mars & Jupiter

The hottest stars are _____________.

The spin of a planet on its axis is called...

Scientists have concluded that....

These are described as "dirty snowballs" made of ice, rock and dust.

Which is larger than a solar system?

The path a planet follows when it travels around the Sun is called an ___________

A bright streak of light caused by small bodies burning up is a ______________

What happens during a lunar eclipse?

Astronomers classify galaxies by their _____________.  

Venus is sometimes called Earth's twin because....

The main difference between an asteroid and a meteoroid is...

Who was the scientist who thought the entire universe revolved around the Earth?

a gigantic explosion that causes the death of a large star is a...

Mercury is not a gas giant because it ________________________.

Which are the major types of galaxies?

What color are the hottest stars?

a rocky body that strikes the surface of a planet is called a _____________.

According to the Big Bang theory, scientists think the universe is ______________ .

Galaxies are bound together by ______________.  

During a total solar eclipse....

The shape of the path a planet follows when it travels around the sun is an  ________.

The phases of the moon are caused by...

The actual brightness of a star is called....

What happens during a solar eclipse?

Planets move around the sun in a path the shape of a(n) ______________.  

Which shows the life cycle of a star from youngest to oldest?

The cooler stars are......

This famous scientist made important discoveries about the motion of planets around the sun.

a massive and dense object from which even light cannot escape its gravity is a 

The brightness of a star as seen from Earth is.....

Stars are now classified by their ___________________.

a region of space between the orbits of Mars and Jupiter is known as ....

Our Sun is a ___________________ star.

One complete trip around the Sun is called a....

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

a star that expands and cools once it runs out of hydrogen is a 

It is difficult to see the true shape of the Milky Way because we live inside it.  

Who was the scientist that first looked at planets through a telescope?

Who was the scientist who thought that the entire universe revolved around the Sun?