5-Nebular theory/ Solar System

Front

Nebulae are primarily composed of what element? Options: Hydrogen, Helium, Other hard elements, Zinc

Back

Hydrogen

Front

Nebula's are mixtures of gases and what?

Back

dust

Front

The ______ is between the orbits of Mars & Jupiter.

Back

asteroid belt

Front

A force of attraction between any two objects is called _____________.

Back

gravity

Front

What do the first four outer planets have in common?

Back

They are much larger than Earth and are made mainly of Hydrogen and Helium.

Front

A giant sphere of glowing gases is a ___________

Back

Star

Front

Mercury, Venus, Earth and Jupiter are the inner planets

Back

False

Front

The __________ has planets, moons, comets, and asteroids.

Back

solar system

Front

Earth and the other planets closest to the Sun are made mostly of _______

Back

rock

Front

What is the smallest terrestrial planet?

Back

Mercury