During __________, weathered rock is carried, dropped elsewhere, and layered down. This can happen slowly or quickly.
deposition
100
Farmers grow plants for food called ______. They grow best in soil balanced with loam and many nutrients.
crops
100
________ is the waste from products made or used by people. It affects the air, water, land, and us!
pollution
100
An earthquake occurs along a ______, which is a break or crack in rocks where Earth's crust can suddenly move.
fault
100
Material in soil made up of decayed plants and animals is called _____.
humus
200
During physical weathering, rocks are slowly broken into smaller pieces of the same kind of rock. Name the 5 things that can cause physical weathering.
water, ice, temperature, animals, and plants
200
______ are they key ingredient in soil and are made from different kinds of pieces of weathered rock.
particles
200
The layer of loose material that covers most of Earth's land is ______. This is full of plants, animals, organisms, minerals, and air.
soil
200
______ _______ is a method of clearing top layers of soil to reach natural resources such as coal.
strip mining
200
Our nation has made national parks to help save, or preserve, nature. This is a process called ___________.
preservation
300
Gravity, wind, water, and ice all slowly move and carry away pieces of weathered bits of rock in a process called __________.
erosion
300
The _____ is the place where Earth's plates start to slip in an earthquake.
focus
300
This is the point on Earth's surface directly above the focus of an earthquake.
epicenter
300
The three basic types of soil are called ____, ____, and ____. A mixture of these types is called ____.
3 types= sand, silt, and clay mixture= loam
300
__________ is the process of restoring land after it has been used. Southwestern Indiana has done this to many mining areas and restored them to farmland and forests.
reclamation
400
Chemical weathering happens when chemicals mix with ____ ______. Rocks slowly change into different materials and break down.
carbon dioxide
400
Good soil is important to support plant growth. The properties of soil are ____, ____, and the _____ to hold ____.
color, texture, and the ability to hold water
400
An area into which most trash is dumped is called a ________. Modern ones can be beneficial to the environment because they are designed to protect underground ______ and control _____.
landfill, water, pollution
400
This is a huge wave of water that is caused by an underwater earthquake or volcanic eruption.
tsunami
400
Earth's outer crust and mantle are divided into very large pieces called _____. These move all the time causing volcanoes and earthquakes.
plates
500
Landforms change constantly in ______________ that occurs when Earth's crust is slowly broken into smaller pieces.
weathering
500
Identify the following landforms as being formed by erosion or deposition: beach, canyon, delta, sand dune, valley.
EROSION: valley, canyon DEPOSITION: delta, beach, sand dune
500
These sometimes occur when heavy rains, volcanoes, or earthquakes loosen materials. The land is then pulled downward by gravity.
landslides
500
Scientists use _______ to locate and measure earthquakes because Earth's surface is quickly changed when earthquakes occur.
seismographs
500
This is an opening in Earth's crust where gases, ash, and molten rock called lava comes out. This can rapidly change Earth's surface.