A body that orbits a planet
Can be natural or man made
What is a satellite?
A model of the solar system with the Earth and other planets revolving around the sun
What is Heliocentric?
A cold mixture of dust and ice that develops a long trail of light as it approaches the sun
What is a comet?
A model of the universe with the Earth in the center
What is geocentric?
An object that orbits the sun and is large enough to have become rounded by it's own gravity
It has cleared it's orbit of any debris
What is a planet?
A streak of light produced when a small piece of rock or ice burns up as it enters Earth' atmosphere
What is a meteor?
Is this a fact about a meteor or comet?
This cold mixture never enters Earth's atmosphere
What is a comet?
An oval shape, which may be elongated or nearly circular.
The shape of the planets orbits
What is an elipse?
The tendency of an object to resist a change in motion
What is inertia?
A streak of light that can be seen with the naked eye
What is a meteor?
The spinning motion of a planet on its axis
What is rotation?
A rocky body smaller than a planet that orbits the sun
What is an asteroid?
A giant ball of super heated gas, or plasma, made of hydrogen and helium
What is a star?
The position of the stars relative to each other do not seem to change
A pattern or grouping of stars that people imagine to represent a figure or an object
What is a constellation?
The movement of an object around another object
What is revolution?
The attractive force between objects
What is gravity?
Rocky or metallic fragment of an asteroid, comet or plant
What is a meteoroid?
Meteor fragment that reaches the ground
What is a meteorite?
Where a planetβs vertical axis is tilted a certain degree towards the plane of the planetβs orbit(23.5 degrees for Earth)
What is an axial tilt?
Scientific law that states that every object in the universe attracts every other object
What is the law of universal gravitation?