BJU Earth Science Chapter 23

The New Horizons mission was sent

Observers noticed that planets can slow down, stop moving, then go backward. This is called:

Asteroids are:

Discovered that Venus had phases

According to Newton, the force that keeps the planets in orbit is:

This model claims that the Earth is at the center of the universe, and everything orbits it.

This person created a new model with which to organize the universe.

The most distant planet in the solar system

Pluto and various other objects beyond Neptune that orbit the Sun make up an area called:

Comets that appear at regular time intervals are called:

The Jovian planets are also called ?

Many scientists believe that large amounts of water caused rapid erosion on Mars.

Galileo

The terrestrial planets are:

There are two "families" of asteroids know as:

Pluto sometimes is closer to the Sun than _______ before going back to its original orbit

The largest planet in the solar system.

Appears tilted on its side with a series of almost vertical rings

What is a characteristic of a dwarf planet?

This philosopher and astronomer tried to correct the Geocentric Model.

This model of the universe places the Sun in the center, and everything orbits it.

The brightest planet as seen from Earth

The kuiper belt holds many:

Combined geocentric and heliocentric theories

What is not a characteristic of a planet

Predicted a comet later named in his honor

Which person set three laws of planetary motion?

Earth's density is greater than Jupiter's

The densest planet

Formulated the laws of planetary motion

What is the correct order?

Smallest planet in the solar system

Which of the following does not orbit the sun?

Mercury and Venus are known as:

Which planet is both terrestrial and superior?

Epicycles and Deferents

Astronomers believe that the likelihood of an asteroid or comet striking the earth in the near future is

Has the most extensive ring system in the solar system

Epicycles and deferents

has the largest volcano in the solar system