test of water Flashcards
What is the DENSITY of a block that has a mass of 79.4 grams and a volume 29.8 cubic cm.? ___________ grams per cubic centimeters (remember: I love density) *
2.7
Spring tide occurs during which moon phase(s)? *
1st and 3rd quarter
If the beach has HIGH tide at 9am, what time will the next LOW tide happen that day? *
9pm
As water gets denser, how does it move? *
expands toward warmer water
gets pushed toward the poles
sinks toward the ocean floor
gets pulled up by evaporation
gets pushed toward the poles
Which of the following could cause a DEEP current? *
underwater earthquake
differences in salinity
winds
meteors
differences in salinity
What is the name of the ocean closest to Georgia
Atlantic
Given that the speed (or velocity) of sound in ocean water is about 1,500 m/s and D= Vt, What would the water depth be if the sound wave takes 10 seconds to return to the ship (so ROUND TRIP=10 seconds)? (Remember the proper units.) *
D = 1500 x 5 (7500 meters)
What is the name of the ocean between Africa and Australia
India
The average salinity of the oceans is \_\_% 18-23 3-7 3-4 40-41
3-4
As you go deeper into the ocean, the water gets colder and water pressure increases
true
false
true
The Mariana __________ is the deepest known area on earth
Vally
Trench
Party
Trench
What is the main salt that is dissolved in ocean water
magnesium sulfate
sodium chloride
glucose
sodium chloride
What are the 5 oceans
Pacific Atlantic Indian Southern Arctic
Which ocean is the biggest?
Pacific
Which ocean is the deepest?
Pacific
Which ocean is the shallowest?
Arctic
As you go deeper in the ocean, what 4 things happen?
Temperature Decreases
Pressure Increases
Density Increases
Salinity Increases
what things make ocean water denser?
higher) Salinity and
(colder) Temperature
What are the features of the ocean floor?
Continental Shelf Continental Slope Trench Abyssal Plain Mid-Ocean ridge seamount
What are surface currents caused by?
Global Winds
What are deep currents caused by?
Density differences (from temperature and salinity)
What are two surface currents?
The Gulf Stream (Warm) California Current (Cold)
How do surface currents affect climate?
The wind on the oceans blow the air from the current onto the land, cooling it down or warming it up
What is the main cause of waves?
Wind
Which way does the energy and the water molecules (particles) move in a wave
The energy moves forward, but the molecules/particles move in circles
What can be the cause of a tsunami?
Underwater landslides
Underwater earthquakes
Underwater volcanoes
Where do most tsunamis occur?
The Pacific Ocean Ring of Fire
What are the two types of extreme tides?
Springtide and neap tide
What is Spring Tide?
Twice a month, when the high tides are higher than normal and the low tides are lower than normal.
Happens during the new moon and full moon
What is Neap Tide
Occurs twice a month, where the high tides are lower than normal, and the low tides are higher than normal
Happens during the first and third quarter of the moon phases
