Inner Planets
This is a natural satellite that revolves around the Earth.
the moon
This is the largest planet in the solar system.
Jupiter
This is a giant sphere or ball of gases that produces light and heat.
Star
These are space objects made up of dust and ice - they create a "tail" behind them.
a. Meteors
b. Meteroids
c. comets
d. asteroids
C. Comets
This is the imaginary line through the middle of Earth or any sphere and the Earth spins on this.
Axis
When the Earth's rotation axis is tilted directly toward or away from the sun, it is called the ________.
Hint: happens twice a year
Solstice
Which planet is tilted on its side?
a. saturn
b. Neptune
c. Jupiter
d. Uranus
d. Uranus
What is made up of the sun and all of the objects that travel around it?
The solar system
When a meteoroid enters Earth's atmosphere, it produces a streak of light called a _______
Meteor
This was the 9th planet until 2006.
Pluto
What are the four terrestrial planets?
Must get all 4 for points
Mercury, Venus, Earth and Mars
Which planets are gas or ice giants (also known as the outer planets)?
Must name all 4 for points
Jupiter, Saturn, Uranus, and Neptune
This equals one revolution around the Sun.
one revolution around the Sun= _______
One year
What force keeps the planets in orbit?
Gravity
The strength of gravity is directly proportional to a planets ______
mass
This occurs when Earth’s rotation axis is tilted neither toward nor away from the Sun.
Hint: happens twice a year
Equinox
Another Name for the Outer Planets?
Gas Giants
This is the movement of one solar system object into the shadow of another object.
Eclipse
What is a group of stars called?
constellation
This equals one rotation of Earth around its axis.
One rotation of earth = ________
One day
Another name for the Inner Planets?
Rocky Planets
This is the spin of an object around its axis.
Rotation
These orbit the Sun and are nearly spherical in shape, but they share the orbital paths with other objects of similar size
Dwarf planets
These are large pieces of space rock with irregular shapes found between Mars and Jupiter.
Asteroid belt
This states that the universe began from one point and has been expanding and cooling ever since.
Big Bang Theory