This is Earth's only natural satellite.
What is the moon?
What is rotation?
Earth moves in two major ways.
What is rotation and revolution?
This attracts all objects toward each other.
What is gravity?
What is mass?
This is a pattern or group of stars.
What is constellations?
This takes the Earth one year or 365 days to complete.
What is a revolution?
It is this season in the northern hemisphere when it is tilted towards the sun.
What is summer?
The force of gravity on an object is called this.
What is weight?
These two things work together to keep planets in their orbits.
What is gravity and inertia?
The sun looks like it moves east to west across the sky because of this.
What is apparent motion?
Earth's orbit is also called this.
What is an ellipse?
This is when the sun is appears furthest north (longest and shortest days of the year)
What is a solstice?
The tendency of an object to resist a change in motion.
What is inertia?
This is a push or a pull.
What is force?
These are the reasons Earth has seasons.
This is a system of organizing time.
What is a calendar?
This is when day and night are equal.
What is an equinox?
An object at rest will stay at rest, while an object in motion will stay in motion.
What is Newton's first law of motion?
This states that every object is attracted to every other object.
What is Newton's law of universal gravitation?
These 3 criteria make up the definition of a planet.
What is orbits the sun, rounded by its own gravity, and cleared its orbit.
When it is winter in the southern hemisphere, it is summer where?
What is the northern hemisphere?
A solstice happens during these two seasons.
What is winter and summer?
Gravity decreases as distance does this.
What is increases?
The more mass an object has the more ______ it has.
What is inertia?