Module 6 Science Study Guide

What causes a river to form a delta?

A delta is formed because the river deposits many of the sediments there.

Will a river with faster or slower flowing water cause more erosion?

A faster flowing river

List the differences between a stalactite and a stalagmite

A stalactite hangs from the ceiling of a cave and a stalagmite grows from the floor of the cave.

Describe how the 3 basic rock types are formed

A. Igneous rock is the result of molten rock that cools and solidifies B. Sedimentary rock is formed when sediments fuse together C. Metamorphic rock is formed when either sedimentary or igneous rocks change, usually the result of temperature or pressure.

Limestone is exposed to acidic water. It breaks down forming gas in the process. Is this physical or chemical weathering?

Chemical weathering

What kind of water is responsible for eroding underground caverns?

Groundwater is responsible for underground erosion.

What agent is responsible for laying down most of the sedimentary rock we see today?

Most sedimentary rock is laid down by water.

READ on rock and unconformity!!

Okay>>

A rock is constantly being blown on by the wind and it is wearing down. Is this physical or chemical weathering?

Physical weathering

How are stalactites and stalagmites formed?

Stalactites and stalagmites are formed when groundwater leaks through the ceiling of a cavern and drips to the floor. As the drop forms it may deposit sediments on the ceiling or floor of the cavern. As these sediments form it creates stalactites and stalagmites.

Name the 3 basic rock types

The three basic types of rocks are igneous, metamorphic, and sedimentary.

Which view requires the earth to be billions of years old, uniformitarianism or catastrophism?

The uniformitarianism view requires that the earth be billions of years old.

Will a hillside with plants or without plants erode quicker?

Without plants