Waves + Tides
How are waves formed?
By wind blowing over the ocean
What should you do when you get caught in a rip current?
Stay calm & swim parallel to shore
How many ocean gyres are there?
5
Which liquid is more dense: honey or corn syrup?
Honey
What is responsible for tides occurring?
gravity
Tsunami is a....
series of waves
What forms deep currents/what causes deep water to move?
Density
Bonus: what causes differences in density in the ocean? (2 things)
What are the 3 types of wave breakers?
spilling breakers, surging breakers, and plunging breakers
Bonus: which is created by a gently sloped beach?
Does sun or moon have greater influence on the tides on earth?
Moon
Bonus: what kind of tide occurs when moon, earth and sun are parallel to each other?
List the signs of a rip current
churning and choppy water, water discoloration, seaweed or debris floating towards open ocean, break in oncoming waves--no waves = water deep
What are the two ways the ocean can increase its salinity?
Freezing + Evaporation
What type of wave suddenly jumps forward and occurs at steep beaches?
surging breaker
How many tides are in one day, typically?
Shallow water wave that created is due to rapid tide change
Tidal Wave
What causes surface currents?
Wind
Bonus: What causes gyres to rotate in different directions based on the hemisphere they are located in?
Waves break as they get closer to shore due to ______ with the seafloor.
friction
when waves travel from deep water to shallow water very quickly and have to slow down rapidly
plunging breaker
What is the phenomena that causes rogue waves?
Superposition
What is it called when currents shift when they run into land?
Continental deflection
What percent of the earth does the ocean cover?
70%