Weathering Erosion Fossils and Rocks

When earth materials break apart, it is called: 

• sedimentation
• deposition
• _weathering
• erosion

Sand is actually pieces of:

• glass
• tiny rocks
• fossil pieces
• salt from the ocean

Which agents  break down earth materials?

• wind only
• earthquakes and gravity
• ice and 007
• wind, water, and ice

What is this landform?

• mountain
• canyon
• coast
• cliff

When wind blows over the land, it picks up the smallest particles of sediment.

• True
• False

The process by which running water, wind, or ice carry away bits of broken-up rock is called...

• weathering
• sediment
• erosion
• cememtation

What is mechanical weathering?

• Process through which rocks are physically broken into smaller pieces.
• Rocks are broken down through chemical changes.
• Rocks are worn away from acid in plant roots.
• Rocks broken down by machinery.

The change  pictured  was most likely caused by –

• deposition and erosion
• precipitation and glaciers
• weathering and erosion
• evaporation and deposition

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

Sand dunes like the ones pictured above are most likely caused by —

• rain
• glaciers
• wind
• water