PMA 2 Review

Front

What is a natural sand dune?

Back

A natural sand dune is formed when windblown sand is trapped by beach grass or other objects.

Front

How does the speed of sound vary in different states of matter?

Back

The speed of sound is fastest in solids, followed by liquids, and slowest in gases.

Front

What is a delta?

Back

A delta is a triangular shaped plain at the mouth of a river formed when sediment is deposited by flowing water.

Front

What does it mean if fossils of the same type of organism are found on separated continents?

Back

It indicates that all continents were once together, as these organisms could not have crossed oceans.

Front

Is there a gravitational pull between you and your chair?

Back

True, there is a gravitational pull between you and your chair.

Front

What is sediment deposition?

Back

Sediment deposition is the process by which material is added to a landform or land mass, often occurring at river mouths.

Front

What role does wind play in the formation of sand dunes?

Back

Wind transports sand and can pile it up, forming dunes when it is trapped by vegetation or other obstacles.

Front

What is the relationship between the state of matter and the speed of sound?

Back

Sound travels fastest in solids because particles are closer together, allowing vibrations to transfer more quickly.

Front

Define a tributary.

Back

A tributary is a river or stream that flows into a larger river or lake.

Front

What is the significance of fossils found on different continents?

Back

Fossils found on different continents suggest that those continents were once connected, supporting the theory of continental drift.