5th Grade Science Vocabulary

Packet 3

Air Pressure

Homework Due:__________             Weekly Quiz on:___________

Air Pressure

The weight of the air or atmosphere; a cause of weather.  (high pressure= good weather/ low pressure= bad weather)

Atmosphere

The thin layer of air surrounding the Earth; consists of oxygen, nitrogen, and other gasses

Climate

The average condition of the weather at a place usually over a period of years; consists of temperature, wind, and precipitation

Humidity

The amount of moisture in the atmosphere

Front

In weather, the boundary between two air masses (EX: cold front, warm front, stationary front)

Weather

The state of the atmosphere with respect to temperature, atmospheric pressure, wind, and moisture at a certain place and time

Wind

The movement of air around the Earth; caused by the uneven heating of Earth’s surface

Water Cycle

The process by which water is renewed and reused on earth (evaporation, condensation, precipitation, and accumulation/collection)

Weathering & Erosion

Homework Due:__________             Weekly Quiz on:___________

Sediment

Bits of rock, soil, sand, shells, and the remains of organisms

Agent

A cause of change (EX: water, wind, and ice)

Deposition

The process of dropping, or depositing, sediment in a new location

Weathering

The process of breaking rock into soil, sand, and other tiny pieces called sediment

Erosion

The movement of weathered materials by agents (wind, water, or ice)

Landform

A physical feature on Earth’s surface (EX: mountain, valley, plain, plateau, delta, sand dune, canyon

Fossil

  

Homework Due:__________             Weekly Quiz on:___________

Gradual

Happening by small steps or degrees to the Earth. Moving little by little (EX: creep, glacier, caves, valleys)

Rapid

Happening quickly (EX: landslide, earthquake, sinkhole, flooding, tornado, volcanic eruptions)

Sinkhole

A large hole in the ground that opens suddenly

Sedimentary Rock

Rocks that form when sediments are pressed/compacted and then cemented together over time (EX: limestone)

Fossil

The remains or traces of an organism that lived long ago

Fossil Fuels

Fuels formed from the remains of once-living organisms that decomposed (EX: coal, petroleum/oil, & natural gas)

Conservation

The wise use and protection of natural resources (renewable and non renewable)