Review Oceans and Climate

When an ocean current approaches a landmass, what happens to it?

• runs right through it

• deflected to go around it

• the current just stops

• ocean water will mix with freshwater to change the salinity

Which of the following is false about Earth's climate?

• Northern climates are always colder that southern climates

• climates change everyday

• there are many different climates on Earth

• climates near the ocean are more temperate than landlocked climates.

Which of the following statements are false about ocean currents? You may choose more than 1.

• Currents change over time

• currents always follow the patterns of the wind

• weather is unrelated to ocean currents

• currents create differences between areas of the ocean

There are 4 students discussing why it is colder at the poles versus the equator. Who has the correnct statement?

• Carl says that because the Earth is round, the sun's energy is deflected due to the curved surface.

• Marly says it is colder because the Earth is not a sphere, therefore uneven surfaces and oceans cause the sun's energy to be absorbed differently.

• Bob says that it is colder at the poles because Earth is tilted on its axis, and the sun's energy is spread out over a larger area.

• Charles said it's because the sunlight has completely disinigrated by the time it reaches the poles.

Salinity is

• The level of density in air

• tide levels

• marine biodiversity

• amount of salt dissolved in water

You did a lab placing a blue ice cube in a beaker of warm water. What kind of current were you modeling?

• Warm surface currents

• upwelling

• density currents

• cold surface currents

Million of years ago Earth's continents were in different positions. Which statement below is ture about ocean currents million of years ago compared with today?

• Nothing would change. Both surface and density currents would follow the same routes as today.

• Density currents would have different routes, but surface would still follow the same routes they did back then.

• Both currents types would have different routes based on the location of the landmasses.

• Surface currents would have different routes.

What is the cause of density currents?

• Differences in ocean salinity wind

• Differences in ocean salinity and air pressure

• Differences in ocean salinity and the sun

• Differences in ocean salinity and temperature

Weather is _____as climate is to__________(this is an analogy question)

• writing a novel; writing in your daily agenda

• walking the path; waiting at a stop light

• clothes in your wardrobe; your daily outfit

• time spent in your homeroom; attending school kindergarten through grade 12

The term "economical" means

• to spend money carelessly

• relationships between organisms and their environment

• analyzing money

• to avoid waste or extravagence; use wisely