Review Sheet Flashcards
Northern hemisphere is tilted toward the sun
It is summer
Temperatures are warmer
More hours of daylight
Northern hemisphere tilted away from sun
It is winter
The temperatures are cool
Less hours of daylight
The Southern Hemisphere is in the opposite season of the northern hemisphere
Fact
Summer solstice (spring)date?
June 21st
Winter solstice
December 21st
Vernal equinox
March 21st
Equal hours of day and light
Autumnal Equinox (fall)
September 22nd equal hours of day and night
What receives the the most direct rays of sunlight?
The equator
How does the earth rotate
Counterclockwise
How long is one complete cycle of the moon?
About a month ( 29.5) days
How many days does rotation take for the moon
27.3 days
How long does revolution take for the moon
27.3 days
What happens when the sun reflects off the moon?
The moons surface lights up as the moon as the moon revolves around the world
When does the solar eclipse happen
When the moon passes between the sun and earth
What causes the seasons?
The tilt and Revolution
What causes a lunar eclipse
The moon passes through the earths shadow
How does the moon rotate
Counterclockwise
How do tides occur
The gravitational pull of the moon on earths oceans
What is Ceres
Ceres is the largest asteroid we know
It is 900km
How are asteroids similar to planets?
Both rotate around central axis
Both have moons
Both orbit sun
About same distance from sun
How does a meteor relate to an asteroids
A meteor is a small piece of an asteroid
Asteroid
A large rock in outer space
Comets
A small world which scientists say are made of dust and ice
Meteorites
A piece of rock can be big enough so that it does not all burn up while entering the atmosphere and it will hit the ground
Why does the sun look so small from earth
It is about 150 km away
What would happen if the earth was a different distance from sun
Closer- it would be to hot(temperature increase)
Further- it would be to cold( temperature decreases)
Why shouldn’t you look directly at the sun
Powerful solar radiation can blind you
What is a solar flare
A stream of gas that explodes from the sun’s surface
If the sun burned out how long would it take people on earth to notice
Eight minutes
Which of these planets are not a gas giant
Venus
Why can we see the moon
We see the moon because the sun reflects light off it
What is a lunar month
A lunar month is when one full moon goes to the next full moon
How does the gravity of earth compare to the gravity on the moon
The gravity of the moon is 1/6 of the earths
True or false Half of the moon is always lit up except during an eclipse
True
True or false the moon emits it’s own light just like the sun
False
What is the relationship between the earth the sun and the moon
They all rotate revolve and they are all moving
Why are there different phases of the moon
Moon orbits the sun
Solar eclipse
Occurs when the moon passes between the sun and earth so the sun is partially or totally covered
Lunar eclipse
A full eclipse of the moon
Lunar eclipse occur simply because the earth gets in the way of the sun and the moon
Tides
The gravitational pull of the Moon tugs on the surface of the ocean until it’s surface mount up and outwards in the direction of the moon
