The -spheres
The geosphere describes all of this substance on Earth.
What is rock?
A planet that is mostly rocky in composition is called this kind of planet.
What is a terrestrial planet?
The motion of the Earth spinning in place around its axis is call this.
A big cloud of dust and gas in space is called this.
What is a nebula?
All of the energy on Earth originally came from this place.
What is the Sun?
This word describes all of the water on Earth.
What is the hydrosphere?
What is a Jovian planet?
The type of motion where one object orbits around another object is called this.
What is revolution?
This is what happens to a nebula as it spins really fast.
What is flattening?
The electromagnetic _______ describes the full range of radiation that is emitted by the Sun.
What is spectrum?
This word describes all of the life on Earth.
What is the biosphere?
The Kuiper and Asteroid belts are home to these small planetary bodies.
What are dwarf planets?
This type of motion causes the day-night cycle on Earth.
What is rotation?
What is the solar system?
This unit is used to measure the distance between two curves on a wave of electromagnetic radiation.
What is wavelength?
This word describes all of the air on Earth.
What is the atmosphere?
The four closest planets to the sun are all this kind of planet.
What are terrestrial planets?
The Earth's axial tilt, along with its revolution around the Sun, are responsible for this yearly cycle.
What are the seasons?
These two types of gas were the most common elements in the nebula that formed the Solar System.
What are hydrogen and helium?
This is the name of the chemical process that happens inside the Sun, generating all of the energy it sends to Earth.
What is nuclear fusion?
This word, which often comes after North and South, describes half of a planet.
What is a hemisphere?
Name 3 out the 4 Jovian planets in the Solar System.
Jupiter
Saturn
Uranus
Neptune
The Earth isn't exactly orbiting the Sun, but instead they both orbit each other around this point.
What is the barycenter?
This is the name of the small celestial bodies that collided and combined to form planets during the early stages of the Solar System.
What are planetesimals?
This is the type of radiation with the most energy, and the shortest wavelength.
What are gamma rays?