Big Idea 5 Earth in Space and Time

Front

What are the outer planets known for?

Back

They have a gaseous atmosphere.

Front

What do all planets have in common?

Back

They are round, rotate on an axis, and revolve around a star.

Front

What is the term for the different amounts of the moon we see throughout a month?

Back

Moon phases.

Front

What is a comet?

Back

A space object made of ice, dust, and frozen gases that has a tail.

Front

How long does it take for the Earth to revolve around the Sun?

Back

One year.

Front

What is the main difference between inner and outer planets?

Back

Inner planets are rocky, while outer planets are gaseous.

Front

What is rotation?

Back

The spinning of a planet on its axis.

Front

What is revolution?

Back

The movement of a planet around a star.

Front

What causes day and night on Earth?

Back

The rotation of the Earth on its axis.

Front

What is a solar system?

Back

A collection of planets and other celestial bodies that orbit a star.