Causes deep ocean currents
What are density differences?
Periodic up and down movement of water
What is a wave?
Approximate time for rotation of Earth
What is one day or 24 hours?
A layer of crushed rock and dust on the lunar surface
What is regolith?
Shooting star
What is a meteor?

What is a spring tide?
Water in the ocean moving in giant streams
What is a current?
Forms when waves topple over
Approximate time for one revolution of the Earth around the sun
What is one year or 365 1/4 days?
A moon phase that is decreasing in the lit portion
What is waning?
The least dense planet in our solar system
What is Saturn?
DAILY DOUBLE!
The measure of dissolved solids in a liquid
What is salinity?
Causes curved paths of ocean currents
What is the Coriolis Effect?
DAILY DOUBLE!
Distance wind blows across an area of the sea to generate waves
What is fetch?
System for measuring time by dividing it into days, weeks, months, and years
What is a calendar?
A large, dark area of lunar basalt
What is mare?
Has volcanoes, canyons, polar ice caps, and seasons like Earth
What is Mars?
Irregular current caused by breakers pulling water back into deeper water
What is an undertow?
Major factor influencing surface currents
What is wind?
Forms when the wind blows the crest off of waves
What are whitecaps?
Place in a planet’s orbit when it is closest to the sun
What is perihelion?
A moon phase in which less than half of the moon’s face is illuminated
What is crescent?
Its blue-green color indicates an atmosphere containing a large amount of methane.
What is Uranus?
Movement of water away from the coast
What is ebb tide?
Causes density differences in ocean water
What are salinity and temperature?
The distance from one crest or trough to the next successive crest or trough
What is wavelength?
Aristotle developed this model of the solar system with the Earth at its center
What is geocentric?
Moon phase where the lit portion is more than half of the moon’s face
What is gibbous?
Has a giant storm on its surface called the Great Dark Spot
What is Neptune?
Forms sandbars
What are longshore currents?
Area where a huge circle of ocean water would be moving in a counter-clockwise direction
What is the Southern Hemisphere?
Caused by underwater landslides, volcanic eruptions, or earthquakes
What is a tsunami?
The developer of the heliocentric model of the solar system
Who was Copernicus?
The point in the lunar orbit that is farthest from Earth
What is apogee?
Hottest surface temperatures due to runaway greenhouse effect
What is Venus?
Areas in solar system that are home to comets
What are Kuiper Belt and Oort Cloud?