Science Vocabulary
When one object travels around another object.
What is an orbit?
1. Only a smaller portion of Earth can see it.
2. Causes darkness.
3. New Moon
What is a solar eclipse?
99.8 percent of the Solar System's mass?
What is the Sun's mass?
The man who discovered gravity
Who is Sir Isaac Newton?
When light on the moon decreases.
What is waning?
23.5 degrees
What is Earth's tilt?
93 million miles or 150 million kilometers.
What is 1 AU.
An object with little mass or an object that far away from another object.
What is object with little gravity.
An oval shape; a flattened circle.
What is an ellipse?
When the light is increasing and more than half of the moon is visible.
What is a waxing gibbous moon?
Because we live on Earth and know most about Earth.
Why is everything relative to Earth?
The amount of mass an object has an how far it is from another object.
What is what determines how large gravity is?
The force that causes speed and direction.
What is velocity?
The pattern of light that happens at the second half of the lunar cycle.
What are waning moons?
They do not have a true surface because they are made up of gasses.
What are the outer planets?
The gravity that pulls Earth closer.
What is the Sun's gravity?
The law that states that any object that has a mass has a gravitational force.
What is The Law of Gravitation?
Indirect sunlight; not completely shining on half of Earth.
What is winter?
Because they have a large enough mass to pull in small rocks and dust around them.
Why do the outer planets have rings?
The initial velocity of Earth and the gravitational pull from the Sun.
What causes the Earth's orbit around the Sun?