What are the two main forces that break down rocks?

When water in cracks and rocks freezes and expands forcing cracks to widen, this is called ____________________________.

The roots of plants breaking rocks apart and animals burrowing into rocks is an example of _____________________.

____________________________________ is when water and wind carry particles that hit rocks, slowly scraping their surfaces.

_______________________________________ is when an underground rock emerges, giving it room expand and break apart.

When rocks heat up and expand, then cool down sometimes causing them to break apart it is called Thermal Stress. This is an example of _______________________________.

Physical forces that break down rock is called _______________________________.

Rocks broken down by chemical reactions is called ______________________________.

When Carbon Dioxide in the air or soil reacts with water to form carbonic acid, which can corrode certain rock, this is a type of chemical weathering called ____________________________________.

When plant roots produce organic acids that can dissolve minerals in rock, this is called ____________________________________.

____________________________________ occurs when oxygen reacts with rocks and metals such that it breaks them down causing rust to form.

Rock layers tell us the AGE of fossils. The further down you go through the layers the _______________________________ the fossil.

____________________ is dirt you find on the ground that supports all plant life. It is a combination of weathered rocks, organic matter from living organisms, water, and air.

___________________________________ is the removal of weathered material or rocks and soil by wind or water.

What are two landforms caused by erosion? (PICK 2 ANSWERS)

Which of these is NOT an example of erosion?

What are the 4 main forces of erosion?

Huge masses of ice that move across the Earth's surface, carrying away huge chunks of rocks are called _________________________.

_____________________________________ is an example of mass movement erosion caused by gravity/water/wind. It can happen very quickly!

______________________________ rocks result from deposition.

___________________________________ is the process of water or wind depositing or dropping sediment.

A _______________________________ is a triangular area of nutrient rich sediment, deposited by a river.

Deposition is a _____________________ change to the Earth's surface.

_____________________________________ are hills of sand built by wind or water.

___________________________________ are objects showing an imprint, remain, or trace of a prehistoric animal.

Which of these organisms are most likely to have a fossil develop from?

A ___________________________________ is sediment created by floods.

______________________________ are formed from broken rocks that have fallen from nearby cliffs.

_____________________________________ is debris deposited by glaciers.