The phase that occurs when all of the Moon's surface is completely dark because it's unlit side is facing Earth.

The graph shows the amount of daylight during different months. Which season tends to have the shortest periods of daylight?

What phase is this?

What phase is this?

What phase is this?

What phase is this?

What phase is this?

What phase is this?

What phase is this?

We see only half of the moon at any given time

Which image represents a Waxing Crescent?

Which image represents a Third Quarter moon?

Where does the moon's light come from?

The moon has its own light.

Grace is observing the moon and notes that it is currently a full moon. Which lunar phase would she expect to see 14 to 16 days after this phase?

Which two changes to Earth helped form this sea arch?

What is the most likely explanation for the formation of the valley pictured below?

The breaking down or wearing away of earth materials is known as

The process of sediment being dropped off in a new location is called

The movement of sediment and rock particles is called

Weathering can be caused by

Rain washing away soil from a hillside is an example of

The process can either be physical or chemical

A sand dune created from the build up of sediments is an example of

A landslide is caused by weathering from too much

Wind blasting sand at rock and carving out arches

Caves are large empty spaces below the surface of the Earth. Which of the following processes forms caves over millions of years?

Earth's surface is constantly changing and new landforms are constantly taking shape due to natural processes. Which landform is most likely caused by deposition?

This landform is formed by

Which of the following is caused by the rotation of the earth on its axis?

Which statement explains why we see different stars in different locations in the sky?