Unit 2: The Solar System Crossword

The ___________is the sun and all the bodies that orbit the sun.
In the __________ model, Earth and the other planets orbit the sun.
This apparent shift in the position of an object when viewed from different locations is known as ______
________ is a force of attraction between objects that is due to their masses and the distance between them.
An ______ is the path that a body follows as it travels around another body in space.
The inward force that causes an object to move in a circular path is called...
This cloud, from which the solar system is formed, is called the __________
Small bodies from which the planets formed are called _______
______ is the process by which two or more low-mass atomic nuclei fuse to form another, heavier nucleus
Dark areas that are formed on the surface of the sun are called______
A ________ is an explosive release of energy that can extend outward as far as the sun's outer atmosphere
The __________ planets are the four small, dense, rocky planets that orbit closest to the sun
One__________ equals the average distance between the sun and Earth, or approximately 150 million km.
_________ have deep, massive gas atmospheres, which are made up of mostly hydrogen and helium
A ____________ is a disk of material that circles a planet and consists of orbiting particles.
Like planets, a __________ is a celestial body that orbits the sun and is round because of its own gravity
The ____________ is a region of the solar system that begins just beyond the orbit of Neptune and contains small bodies made mostly of ice
A_________ is a small body of ice, rock, and dust that follows a highly elliptical orbit around the sun
A _________ is a meteoroid that reaches Earth's surface without burning up
A bright streak of light that results when a meteoroid burns up in Earth's atmosphere is called a ______