Front

How are fossil fuels formed?

Back

Organism growth, burial, compaction

Front

Which diagram shows compaction which leads to the formation of sedimentary rock?

Back

Front

What is erosion?

Back

Pieces of soil or rock are carried from one place to another.

Front

How do plants growing on the surface of a pond form fossil fuels?

Back

Dead plants sink to the bottom and get buried by sediment for millions of years.

Front

What characteristic of sedimentary rock does the model of pouring layers of sand and gravel show?

Back

Sedimentary rock is made of layers.

Front

How do layers of sediment on the ocean floor become rock over years?

Back

The weight of the water compacts the sediment into rock.

Front

How were the sand dunes in Monahans Sandhills State Park, Texas, most likely formed?

Back

strong winds

Front

The shape of a delta can change over time. The size and shape of this delta over time are NOT likely to be changed by -

• The amount and size of tides along the shore
• The amount and size of sediments carried by the river and streams
• The amount of fishing in the delta
• The amount and size of waves from the ocean that reach the shore

Back

The amount of fishing in the delta

Front

How was the canyon in Northern Arizona most likely formed?

Back

Floods eroded the sandstone away from the canyon walls.

Front

This wide U-shaped valley is shown in the picture. It was most likely formed by -

Back

Glaciers eroded the sediment as it melted and moved.