The second planet from the sun
Venus
The ____________ of the Earth is one of the main reason we have seasons.
Tilt
Our Solar System is in which galaxy?
Milky Way
During this phase of the moon you can see the entire moon in the night sky
Full Moon
The force that pulls everything to the center of the Earth
Gravity
This planet is in the habitable zone of our sun
Earth
When it is Summer in the northern hemisphere it is this season in the southern hemisphere.
Winter
This is the measurement used to measure distance in our solar system.
Astronomical Units or AU's
This means the moon is getting more visible in the nights sky.
An object at rest stays at rest while an object in motion stays in motion unless acted upon by an exterior force.
Inertia
This is the biggest planet in our solar system
Jupiter
Summer/Winter
Is the Earth big? Why do giant stars look small in the nights sky?
It depends on what you are comparing it to.
They are far away.
This means the moon is getting less visible in the nights sky
Waning
It takes the Earth this long to orbit the Sun. It takes the Earth this long to rotate on its axis one time.
365 days/1 year
24 Hours
List all the planets in order
The longest and shortest days of the year are called this.
Solstice
How many stars are estimated to be in the Milky Way galaxy?
200 billion
This eclipse is when the moons shadow is cast on the Earth
A blood moon can occur during this phenomenon.
Lunar Eclipse
These are the three classifications of a planet
1. It orbits the sun
2. It has enough mass to be rounded by gravity
3. Its path is clear of all other objects
How come, even though the Earth is farthest away from the sun, we have Summer and Winter? What causes them?
Half the earth is receiving direct sunlight while the other half is not.
Kuiper belt
The reason we don't see the dark side of the moon.
Because the moon rotates at about the same speed it revolves around the Earth.
A million seconds is about 12 days. A billion seconds is about 31 years. A trillion seconds is about ___________ years.
31,000-32,000