Test 1
The Sun's energy comes from
nuclear fusion
The length of a star's life depends on
its mass
One complete ____ of the Earth around the sun is called a year.
revolution
A _____ is the movement of energy through a body of water.
wave
The darkest part of the moon's shadow is called..
umbra
How many layers does the Sun have
3
A system of 2 stars
binary star
Earth's rotation on it's ____ causes day and night.
axis
An _____ is the upward movement of cold water from the ocean depths.
upwelling
The Earth's path as it revolves around the sun is called it's
orbit
Scientists believe we will one day be able to live on
Mars
A pattern of stars in the sky
constellation
What is the highest point of a wave?
crest
The horizontal distance between crests is called...
wavelength
_______ in the ocean occur mainly because of the differences in how much the moon pulls on different parts of the Earth.
Tides
Name the Outer Planets
Jupiter Saturn Uranus Neptune
A giant structure of billions of stars
galaxy
The effect of the Earth's rotation on the direction of winds and currents is called the
Coriolis Effect
A _____ current is a rush of water that flows rapidly back to the sea through a narrow opening.
rip
A ________ is any natural or artificial object that revolves around an object in space.
satellite.
Name the inner planets
Mercury Venus Earth Mars
What is the name of the galaxy we live in
Milky Way
A star is born how?
nuclear fusion
_______ from the seawater comes from the atmosphere and algae in the ocean.
Oxygen
A ______ eclipse occurs at full moon when the Earth is directly between the moon and the sun.
lunar