Unit 6: Solar System

Spinning on an imaginary axis is called

Three parts of the comet are 

Craters are

A meteoroid that enters Earth's atmosphere and is burned away is called a

All of the gas giants have ______, however, you may not be able to clearly see them.

Space Shuttles were built and better than rockets because

Highlands are known as

A chunk of rock  or iron that travels through space is called

High and low tides occur every

The outer planets are known as the Gas Giants or the

The first man in space was Yuri Gagarin, who was from

The most well known comet is _______________, which orbits every 75-76 years

The astronomer who discovered the shape the planets orbited in was

The man who went to the moon but stayed on the space shuttle was

When the Earth is directly between the moon and the sun you have a 

The inner planets are also known as the ___________.

The daily rise and fall of Earth's water's on it's coastlines is

Chunks of ice and dust with orbits as long, narrow ellipses are called

An astronaut experiences changes in _________ but not _________

A waxing moon is when the light 

This picture is a 

This picture is a 

Rocky, Solid, and Dense are three terms used to describe

The sun and moon pulling at right angles producing lower tide levels is called?

What is the geocentric theory?

The moon is considered a satellite because

A satellite that revolves around Earth at the same rate that Earth rotates is called

The first satellite that orbited the Earth was

The gravitational pull of the sun/moon is greatest when they're aligned. What tide is produced?

Which planet rotates on its side, at a 90 degree angle?

The spring and fall equinox means that there are

What's caused by the moon's gravity pulling strongly on the Earth's surface nearest the moon?

Who was the astronomer who used a telescope to look into the night sky?

A meteoroid that enters Earth's atmosphere but is not big enough to burn up and lands on Earth

A waning moon is when the light

The first American in space was

Pluto is considered a

What does heliocentric mean?

Lunar eclipses (in totality) only occur during a

The moon takes approximately _____ days to revolve around the Earth.

Rocky remnants from early planet formation are called

The summer solstice gives us a longer

The fourth planet from the sun is

Which two astronomers believed in the geocentric theory?

The Apollo 11 landed on the moon on

The seventh planet from the sun is

When a gas is expelled from the rear of this object,it moves in the opposite direction(forward)

The moon takes approximately ____ days to rotate on its axis.

What three things determine the tides?

What planets are too small to be considered actual planets?

Any natural or artificial object that revolves around another object in space

Our closest star is the ______, 150 million km away.

a large satellite where people can live for long periods of time is called

A machine that is designed not to return to Earth and explore further out into space is called

The Kuiper belt is located

One of the planets that has retrograde rotation (spinning the opposite way) is

What two things keep planets in orbit around the sun?

dark, flat areas that look like seas to Galileo through his telescope are known as

The astronomer who used a telescope to prove the heliocentric theory was

The winter solstices gives us a longer

When the moon passes between Earth and the Sun you have a 

The side of the moon we never see is

Solar eclipses (in totality) only occur during a

Buzz Aldrin and Neil Armstrong were the first people to

Where is the asteroid belt located?

The movement of planets around the sun or moons around the planets is called

This picture is a 

The name of the shape of a planet's orbit is called

Which astronomers believed in the heliocentric theory?

Seasons on Earth are caused by