Planets
This is the planet that is closest to the sun.
The sun is the center of this system.
Earth moves around the Sun in this path.
What is an orbit?
This moon phase occurs when the moon is between the earth and sun.
What is the new moon phase?
The sun is this far away from Earth.
What is one Astronomical Unit?
This is the 3rd planet from the sun.
What is Earth?
The sun is a type of this gas sphere that gives off light and heat.
What is a star?
What causes day and night on Earth?
Earth's rotation
When the sunlight shines on more and more of the moon, we say the moon is doing this.
What is waxing?
This is the part of the Sun that contains gamma rays.
What is the radiative zone?
What is 'they revolve around the sun'?
It takes the earth 365 days to do this.
What is revolve around the sun?
This planet is known as the red planet.
What is Mars?
This is when there are equal hours of daylight and night.
What is an equinox?
This is how long scientists believe it takes for energy to go from the core of the Sun to the surface
What is 1,000,000 years?
These are the rocky planets
What are Mercury, Venus, Earth, and Mars?
This is how long it takes earth to complete one rotation.
What is 24 hours or one day?
This causes seasons on Earth.
What is Earth's tilt?
These mark the longest and shortest days of the year.
This is the part of the sun where plasma heats up and cools down.
What is the convection zone?
These are the gas giants.
What are Jupiter, Saturn, Uranus, and Neptune?
The sun is responsible for this first step of the water cycle.
What is evaporation?
This planet is the coldest and farthest from the Sun.
What is Neptune?
Coal, oil and natural gas are all types of this energy source.
What are fossil fuels?
It takes this many minutes for sunlight to reach Earth
What is 8?