Earth's Structure
Earth's Systems
Natural Hazards
Volcano
Weathering
100

Includes all the water in, on, and around the planet Earth. This water can be in any state of matter, including solid, liquid, and gas.

Hydrosphere

100

The outermost layer of our planet; it's a thin shell that surrounds the entire Earth.

Crust

100

A rise of water with no place to go.

Flood

100

A hot, liquefied rock that flows from a volcano or other opening in the surface of Earth.

Lava

100

A large area of thick ice that remains frozen from one year to the next.

Glacier

200

Made by nature without anything added or changed

Natural

200

The center of the earth. It is a huge metal ball, 2,500km wide. Made mainly of iron, the temperature of the ball is 5,000°C to 6,000°C

Inner Core

200

A violent rotating column of air extending from a thunderstorm to the Ground.

Tornado

200

Molten, or hot liquefied, rock located deep below the Earth's surface.

Magma

200

 a natural feature of the surface of Earth. Examples are mountains, plateaus, and valleys Glacier

Landform

300

Made by people rather than nature

Man-made

300

The outer layer of the core that is made of liquid iron and nickel. Since it is a liquid, the outer core can spin, and it does.

Outer Core

300

A large ocean wave usually caused by an underwater earthquake or a volcanic explosion.

Tsunami

300

A volcano is one which has recently erupted and there is a possibility that it may erupt soon.

Active

300

When chemical reactions make changes to rocks.

Chemical Weathering

400

All living things from plants and animals to fungi and bacteria AND any place you can find life on or around Earth. The parts of and around Earth that supports life.

Biosphere

400

It lies between the crust and the outer core of our planet.

Mantle

400

A mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. Gasses and rock shoot up through the opening and spill over or fill the air with lava fragments.

Volcano

400

A volcano that has not erupted in a long time but there is a possibility it can erupt in the future.

Dormant

400

Over time, movements of the Earth and environment can break apart rock formations.

Mechanical Weathering

500

The layer of gas that surrounds Earth. It is often called air and consists of several different Gasses.

Atmosphere

500

Parts of the lithosphere that break up into huge rock slabs, or crustal plates. There are a few large plates and several smaller plates. Some of the major plates include the African, Antarctic and North American plates.

Tectonic Plates

500

A movement of rock, debris, or earth down a slope due to gravity. The materials may move by falling, toppling, sliding, spreading, or flowing.

Landslide

500

A process where natural forces like water, wind, ice, and gravity wear away rocks and soil. It is a geological process, and part of the rock cycle.

Erosion

600

Includes all the rock, soil and sediments that makeup Earth's land.

Geosphere

600

A theory that proposes that the continents are drifting away from each other because they are located on tectonic plates, or sections that make up the Earth's crust, the outermost rigid layer of the Earth.

Continental Drift

600

Naturally occurring physical phenomena caused either by rapid or slow onset events. Examples include tectonic hazards (earthquakes, landslides, tsunamis and volcanic activity) and climatic hazards (extreme temperatures, drought and wildfires)

Natural Hazard

600

The process where rock. is dissolved, worn away or broken down into smaller and smaller pieces. There are mechanical and chemical weathering processes

Weathering