This is how long it takes the Earth to complete one rotation, in hours.
What is 24 hours?
This is the phase the moon is in when it is entirely lit in the night sky.
What is a full moon?
This is the galaxy we are currently in.
What is the Milky Way?
Newton's 1st Law of Motion states that for every action, there is this.
What is "an equal, but opposite reaction."
This is the high point of a wave.
What is a crest?
This is the line of latitude that separates the Earth into a North and South hemisphere.
What is the equator?
These are the lightly colored highlands or mountains on the moon.
What are terrae?
This is a darker, cooler area on the Sun.
What is a sunspot?
This refers to the tendency for an object's motion or rest to continue.
What is inertia?
This is when a wave is bent while passing through a different medium.
What is refraction?
These are the two points Earth's axis runs between.
What are the North and South Poles?
These are the darkly colored plains on the moon that were created by lava.
What are maria?
This is the hottest planet in our solar system.
What is Venus?
This refers to the rate of change in an object's speed.
What is acceleration?
This refers to the intensity and height of a wave.
What is amplitude?
This is the imaginary line that is the path an object in space follows.
This feature of Earth is controlled by the gravitational pull of the moon.
What are tides?
These are our solar system's gas giants.
What are Jupiter and Saturn?
This refers to resistance from objects touching.
What is friction?
EM waves carry their energy in this.
What is frequency?
This causes the Earth's poles to be in geographically unexpected locations.
What is the Earth's tilted axis?
This is the line that divides the lit and unlit parts of the moon?
What is the terminator?
This is an arch of plasma extending out from the sun's surface.
What is a prominence?
What does the down arrow represent on a free body diagram?
These are part of the eye that detect colors in red, blue, and green.
What are cones?