The moon completely orbits Earth about once a _______.
month
a force of attraction, or pull, between any object and any other objects around it
gravity
The rotation of Earth on its axis creates
day and night
Earth is what number planet from the Sun
third
What causes Earth to have different seasons?
the tilt of the Earth as it revolves around the Sun
How many stars are in our solar system?
one
our star that is in the center of our solar system
Sun
About how much of Earth is covered by water?
70%-75%
How is Earth different from other planets in the solar system?
It has lots of water.
How long does it take for us to go through all 4 seasons?
one year
A star is an object in space that can produce its own __________ and ____________.
heat and light
any of the eight large bodies that travel around the Sun and shine by reflecting its light
planet
How much of Earth has daytime at the same time as the rest is having nighttime?
one half
What do all of the outer planets have in common?
They are gas planets.
In which season are we titled away from the Sun?
winter
Why does our star, Sun, look bigger than all the others?
It is closest to us.
the Sun and the objects that are traveling around it
solar system
It takes Earth _________ to rotate around one time and it takes us __________ to revolve around the Sun one time.
24 hours and 365 days
Name all of the planets in the solar system.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
In which season are we tilted towards the Sun?
summer
Give two characteristics of our star the Sun.
yellow, medium size, closer to Earth, gets energy from nuclear fusion, appears brightest to us
the tendency of a moving object to keep moving in a straight line
inertia
The blanket of air that surrounds the Earth is called ______.
atmosphere
Where is the asteroid belt found?
between the inner and the outer planets or between Mars and Jupiter
Each season lasts about how many months?
3 months