Caused by the earth's rotation on its axis
What is day and night?
Theory of how the universe was formed.
What is Big Bang Theory?
Located between Mars and Jupiter.
What is the asteroid belt?
A push or pull.
What is force?
groups of two or more stars.
What is binary star system?
One complete orbit around the sun, one year
What is revolution?
Spiral galaxy in which we live.
What is the Milky Way?
Small dense planets that have a rocky surface.
What are inner planets?
Force of gravity on an object.
What is weight?
Newton's first law.
What is objects in motion remain in motion, objects at rest remain at rest unless acted upon by an unbalanced force?
Caused by the earth's tilt on its axis
What are seasons?
Formed from a giant ball of gas and dust.
What is a solar/star system?
Reason why giant planets' atmospheric gases can not escape.
What is strong gravitational pull?
Tendency for an object to resist a change in motion.
What is inertia?
Increasing amount of moonlight from new moon to full moon.
What is waxing?
Occurs when the moon is directly between the earth and the sun.
What is solar eclipse?
Two factors that keep the planets in orbit.
What are gravity and inertia?
What is Uranus?
What is mass times acceleration?
The rate in which velocity changes.
What is acceleration?
Occurs when neither end of the earth's axis is pointed towards the sun, and is directly over the equator
What is equinox?
Galaxies that have no gas or dust in order to expand.
What are elliptical galaxies?
hottest planet in our solar system, spins in the opposite direction.
What is Venus?
created when two objects rub against each other.
What is friction?
Thought to be dark spots on the moon.
What are oceans?