Earth in the Universe

Front

What is the star at the center of our solar system?

Back

sun

Front

What are rocky, closer to the sun, warmer, and smaller than the outer planets? Options: asteroids, outer planets, inner planets, the sun

Back

inner planets

Front

What are farther from the sun, made mostly of frozen gas, and are colder than the inner planets. Most have no moons?

Back

outer planets

Front

What is a large body of rock or gas that orbits the sun?

Back

planet

Front

Name a dwarf planet.

Back

Pluto

Front

What is the scientific study of outer space? Options: astronomy, biology, space travel, science

Back

astronomy

Front

What is an imaginary line that goes from the North 
Pole and the South Pole?

Back

axis 

Front

What causes seasons? Options: the moon's size, tilting of the Earth's axis, the sun's position, the earth's position around the sun

Back

tilting of the Earth's axis

Front

What is the sun and the objects that orbit around it called?

Back

solar system

Front

What is the movement of one object around another?

Back

revolution