Define 1
A form of oxygen with three atoms of oxygen in its molecule instead of two
Ion
An atom that has a charge because it lost or gained an electron
What do we call the first phase of a new moon?
Crescent
How far away is the sun?
93,000,000 miles
The planet closest to the sun.
Mercury
Corona
Crown; A vapor blanket that surrounds the chromosphere
Atmosphere
The layer of gases surrounding a planet or moon
When is the corona visible?
Only during a solar eclipse
What percent of the air is oxygen?
21%
The planet fifth from the sun.
Jupiter
Photosphere
Sphere of light; Visible layer of the sun
Chromosphere
A colorful layer of gases surrounding the sun's photosphere
Which layer of the Earth's atmosphere is the only place where weather occurs?
Troposphere
Where do sunspots appear?
The photosphere
The red planet
Mars
Solar Eclipse
When the moon comes between the sun and the earth, blocking out the sun's light
Lunar Eclipse
When the earth comes between the moon and the sun, darkening the moon as it passes through the earth's shadow
Where do meteoroids burn up?
The Mesosphere
What planet was the first one discovered in modern times?
Uranus
I have seven rings
Saturn
Aurora Borealis
The northern lights
Aurora Australis
The southern lights
What planet is blue and has very strong winds?
Neptune
What is Earth's twin?
Venus
I lie upon my side and have 27 moons.
Uranus