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Knowledge and Skills Statement

Earth and space. The student knows that interactions between Earth, ocean, and weather systems impact climate.

One example of a way in which the Sun, hydrosphere, and atmosphere interact is through cloud formation.

An image showing images of cumulonimbus, cumulus, cirrus, stratus, and nimbostratus clouds and their typical altitudes.
Valentin de Bruyn / Coton This illustration has been created for Coton, the cloud identification guide for mobile., Cloud types en, CC BY-SA 3.0

Many types of clouds are shown, including combinations of the four main types and the types most likely to produce rain. Four types of clouds that students may know are:
Cirrus
The Latin word cirro means lock of hair or fringe. Composed of ice crystals, cirrus clouds are whitish and horsetail-like. There are high, wispy clouds that first appear in advance of a storm system.
Cumulus
The Latin word cumulo means heap or pile, as in accumulate. They look like white fluffy cotton balls and are usually dense in appearance with sharp outlines. They show vertical motion when there is a thermal uplift of air in the atmosphere. The base of cumulus clouds is generally flat and sits at the altitude where the moisture in rising air condenses.
Stratus
From the Latin word for layer, as in rock or cake strata, these clouds are usually broad and widespread like a blanket. They result from rising air that is not circulating and tends to occur along warm fronts. The edges of strato-form clouds are diffuse and fuzzy.
Nimbus
A special rain cloud category that combines cumulus + cirrus + stratus, nimbus is the Latin word for rain. The vast majority of precipitation occurs from nimbus clouds, therefore, these clouds are generally the thickest.

the system of gases that surrounds Earth

the weather conditions prevailing in an area over multiple decades

a measurable quantity that describes how much change can occur within a system

the system on Earth that contains all of the liquid and frozen water on Earth's surface as well as groundwater below the surface and water vapor in the atmosphere

the various patterns of movement of water and air driven by interactions among the geosphere (land), hydrosphere (water), and atmosphere (air), with inputs of energy from the sun

patterns of weather that take place in the troposphere, caused by the motion of warm and cool air around Earth

Research

Vermette, Stephen. “Five Guiding Principles of Meteorology.” Science Scope 26, no. 2 (2002): 36–37. https://www.proquest.com/docview/226000958?pq-origsite=gscholar&fromopenview=true&sourcetype=Scholarly%20Journals

Summary:  "Five Guiding Principles of Meteorology" provides information on the basic processes of meteorology, including hot air rising, rising air expands and cools, rising air lowers surface pressure, air traveling from high pressure to low pressure, and cool air holding less moisture than warm air. Activities to assist students in understanding these guiding principles are incorporated.

Research

Hoenigman, Rhonda, and David Crowder. “Clever with Weather.” Science Scope 34, no. 6 (February 2011): 46–51. https://www.jstor.org/stable/i40124527

Summary:  "Clever with Weather" provides a correlating activity between local weather conditions and larger global patterns.  Students work to collect weather data, including temperature, wind speed, wind direction, relative humidity, and barometric pressure at various locations around a school.  Data is collected over several days and analyzed.