Unit 4: Lessons 1&2 quiz

When water cools, what happens?

• It becomes more dense and sinks

• It becomes less dense and sinks

• It becomes more dense and rises

• It becomes less dense and rises

In a convection current heat:

• Sinks

• Rises

When you add salt, remove water, or cool water down, what happens?

• Density stays the same

• Density increase

• Density decreases

A high pressure system has what kind of weather?

• Warmer weather with clear skies

• Cooler weather with storms

A low pressure system has why type of weather?

• Warmer temperatures and clear skies

• Cooler temperatures and storms

In the northern hemisphere, wind and water spins

• Clockwise

• Counterclockwise

• It doesn’t move

If it rains ALOT in the ocean, what happens to the water?

• It loses its saltiness and becomes more dense

• It loses its saltiness and becomes less dense

• It gains saltiness and becomes more dense

• It gains saltiness and becomes less dense

When things are cold they are:

• Less dense

• More dense

Wind flows from:

• High to low

• Low to high

• High to high

• Low to low

When air flows from high to low pressure, what is created?

• Nothing

• Storms

• Wind